Home / 639,546.45-882,550.95-353,060.40

Finding the Fourth Proportional to 639,546.45, 882,550.95 and 353,060.40

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Solution

The fourth proportional to 639,546.45, 882,550.95 and 353,060.40 is: 487,210.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,546.45 : 882,550.95 = 353,060.40 : x
  2. Step 2: Convert to fraction form
    639,546.45/882,550.95 = 353,060.40/x
  3. Step 3: Cross multiply
    639,546.45x = 882,550.95 × 353,060.40
  4. Step 4: Simplify right side
    639,546.45x = 311,593,791,427.38
  5. Step 5: Solve for x
    x = 311,593,791,427.38/639,546.45
  6. Step 6: Final answer
    x = 487,210.57

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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.