Home / 719,170.39-992,478.95-392,501.24

Finding the Fourth Proportional to 719,170.39, 992,478.95 and 392,501.24

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Solution

The fourth proportional to 719,170.39, 992,478.95 and 392,501.24 is: 541,664.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,170.39 : 992,478.95 = 392,501.24 : x
  2. Step 2: Convert to fraction form
    719,170.39/992,478.95 = 392,501.24/x
  3. Step 3: Cross multiply
    719,170.39x = 992,478.95 × 392,501.24
  4. Step 4: Simplify right side
    719,170.39x = 389,549,217,164.59
  5. Step 5: Solve for x
    x = 389,549,217,164.59/719,170.39
  6. Step 6: Final answer
    x = 541,664.71

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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.