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Finding the Fourth Proportional to 938,863.92, 1,295,609.40 and 536,430

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Solution

The fourth proportional to 938,863.92, 1,295,609.40 and 536,430 is: 740,260.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,863.92 : 1,295,609.40 = 536,430 : x
  2. Step 2: Convert to fraction form
    938,863.92/1,295,609.40 = 536,430/x
  3. Step 3: Cross multiply
    938,863.92x = 1,295,609.40 × 536,430
  4. Step 4: Simplify right side
    938,863.92x = 695,003,750,442
  5. Step 5: Solve for x
    x = 695,003,750,442/938,863.92
  6. Step 6: Final answer
    x = 740,260.37

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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.