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Finding the Fourth Proportional to 465,483.92, 642,368.07 and 261,534.83

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Solution

The fourth proportional to 465,483.92, 642,368.07 and 261,534.83 is: 360,918.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,483.92 : 642,368.07 = 261,534.83 : x
  2. Step 2: Convert to fraction form
    465,483.92/642,368.07 = 261,534.83/x
  3. Step 3: Cross multiply
    465,483.92x = 642,368.07 × 261,534.83
  4. Step 4: Simplify right side
    465,483.92x = 168,001,620,773.04
  5. Step 5: Solve for x
    x = 168,001,620,773.04/465,483.92
  6. Step 6: Final answer
    x = 360,918.21

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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.