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Finding the Fourth Proportional to 731,665.40, 1,025,031.40 and 731,665.40

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Solution

The fourth proportional to 731,665.40, 1,025,031.40 and 731,665.40 is: 1,025,031.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,665.40 : 1,025,031.40 = 731,665.40 : x
  2. Step 2: Convert to fraction form
    731,665.40/1,025,031.40 = 731,665.40/x
  3. Step 3: Cross multiply
    731,665.40x = 1,025,031.40 × 731,665.40
  4. Step 4: Simplify right side
    731,665.40x = 749,980,009,293.56
  5. Step 5: Solve for x
    x = 749,980,009,293.56/731,665.40
  6. Step 6: Final answer
    x = 1,025,031.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.