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Finding the Fourth Proportional to 539,155.25, 744,034.25 and 300,691.25

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Solution

The fourth proportional to 539,155.25, 744,034.25 and 300,691.25 is: 414,953.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,155.25 : 744,034.25 = 300,691.25 : x
  2. Step 2: Convert to fraction form
    539,155.25/744,034.25 = 300,691.25/x
  3. Step 3: Cross multiply
    539,155.25x = 744,034.25 × 300,691.25
  4. Step 4: Simplify right side
    539,155.25x = 223,724,588,675.31
  5. Step 5: Solve for x
    x = 223,724,588,675.31/539,155.25
  6. Step 6: Final answer
    x = 414,953.93

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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.