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Finding the Fourth Proportional to 570,306.24, 787,120.20 and 328,545.54

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Solution

The fourth proportional to 570,306.24, 787,120.20 and 328,545.54 is: 453,449.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,306.24 : 787,120.20 = 328,545.54 : x
  2. Step 2: Convert to fraction form
    570,306.24/787,120.20 = 328,545.54/x
  3. Step 3: Cross multiply
    570,306.24x = 787,120.20 × 328,545.54
  4. Step 4: Simplify right side
    570,306.24x = 258,604,831,153.91
  5. Step 5: Solve for x
    x = 258,604,831,153.91/570,306.24
  6. Step 6: Final answer
    x = 453,449.06

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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.