Home / 922,085.28-1,272,568.40-559,480.68

Finding the Fourth Proportional to 922,085.28, 1,272,568.40 and 559,480.68

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Solution

The fourth proportional to 922,085.28, 1,272,568.40 and 559,480.68 is: 772,138.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,085.28 : 1,272,568.40 = 559,480.68 : x
  2. Step 2: Convert to fraction form
    922,085.28/1,272,568.40 = 559,480.68/x
  3. Step 3: Cross multiply
    922,085.28x = 1,272,568.40 × 559,480.68
  4. Step 4: Simplify right side
    922,085.28x = 711,977,430,981.11
  5. Step 5: Solve for x
    x = 711,977,430,981.11/922,085.28
  6. Step 6: Final answer
    x = 772,138.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.