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Finding the Fourth Proportional to 512,569.40, 768,854.10 and 483,044.90

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Solution

The fourth proportional to 512,569.40, 768,854.10 and 483,044.90 is: 724,567.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,569.40 : 768,854.10 = 483,044.90 : x
  2. Step 2: Convert to fraction form
    512,569.40/768,854.10 = 483,044.90/x
  3. Step 3: Cross multiply
    512,569.40x = 768,854.10 × 483,044.90
  4. Step 4: Simplify right side
    512,569.40x = 371,391,051,849.09
  5. Step 5: Solve for x
    x = 371,391,051,849.09/512,569.40
  6. Step 6: Final answer
    x = 724,567.35

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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.