Home / 719,031.35-992,259.27-392,344.29

Finding the Fourth Proportional to 719,031.35, 992,259.27 and 392,344.29

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Solution

The fourth proportional to 719,031.35, 992,259.27 and 392,344.29 is: 541,432.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,031.35 : 992,259.27 = 392,344.29 : x
  2. Step 2: Convert to fraction form
    719,031.35/992,259.27 = 392,344.29/x
  3. Step 3: Cross multiply
    719,031.35x = 992,259.27 × 392,344.29
  4. Step 4: Simplify right side
    719,031.35x = 389,307,258,784.07
  5. Step 5: Solve for x
    x = 389,307,258,784.07/719,031.35
  6. Step 6: Final answer
    x = 541,432.94

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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.