Home / 719,348.73-992,725.38-392,681.13

Finding the Fourth Proportional to 719,348.73, 992,725.38 and 392,681.13

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Solution

The fourth proportional to 719,348.73, 992,725.38 and 392,681.13 is: 541,913.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,348.73 : 992,725.38 = 392,681.13 : x
  2. Step 2: Convert to fraction form
    719,348.73/992,725.38 = 392,681.13/x
  3. Step 3: Cross multiply
    719,348.73x = 992,725.38 × 392,681.13
  4. Step 4: Simplify right side
    719,348.73x = 389,824,523,998.08
  5. Step 5: Solve for x
    x = 389,824,523,998.08/719,348.73
  6. Step 6: Final answer
    x = 541,913.13

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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.