Home / 391,140,578,889.45-586,710,868,334.18-380,120,618,313.45

Finding the Fourth Proportional to 391,140,578,889.45, 586,710,868,334.18 and 380,120,618,313.45

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Solution

The fourth proportional to 391,140,578,889.45, 586,710,868,334.18 and 380,120,618,313.45 is: 570,180,927,470.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,140,578,889.45 : 586,710,868,334.18 = 380,120,618,313.45 : x
  2. Step 2: Convert to fraction form
    391,140,578,889.45/586,710,868,334.18 = 380,120,618,313.45/x
  3. Step 3: Cross multiply
    391,140,578,889.45x = 586,710,868,334.18 × 380,120,618,313.45
  4. Step 4: Simplify right side
    391,140,578,889.45x = 223,020,898,042,409,690,071,040
  5. Step 5: Solve for x
    x = 223,020,898,042,409,690,071,040/391,140,578,889.45
  6. Step 6: Final answer
    x = 570,180,927,470.18

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.