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Finding the Fourth Proportional to 508,911.40, 763,367.10 and 482,667.40

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Solution

The fourth proportional to 508,911.40, 763,367.10 and 482,667.40 is: 724,001.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,911.40 : 763,367.10 = 482,667.40 : x
  2. Step 2: Convert to fraction form
    508,911.40/763,367.10 = 482,667.40/x
  3. Step 3: Cross multiply
    508,911.40x = 763,367.10 × 482,667.40
  4. Step 4: Simplify right side
    508,911.40x = 368,452,413,402.54
  5. Step 5: Solve for x
    x = 368,452,413,402.54/508,911.40
  6. Step 6: Final answer
    x = 724,001.10

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.