Home / 947,072.39-1,306,988.60-517,380.17

Finding the Fourth Proportional to 947,072.39, 1,306,988.60 and 517,380.17

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Solution

The fourth proportional to 947,072.39, 1,306,988.60 and 517,380.17 is: 714,000.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,072.39 : 1,306,988.60 = 517,380.17 : x
  2. Step 2: Convert to fraction form
    947,072.39/1,306,988.60 = 517,380.17/x
  3. Step 3: Cross multiply
    947,072.39x = 1,306,988.60 × 517,380.17
  4. Step 4: Simplify right side
    947,072.39x = 676,209,974,934.22
  5. Step 5: Solve for x
    x = 676,209,974,934.22/947,072.39
  6. Step 6: Final answer
    x = 714,000.31

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Double scale
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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.