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Finding the Fourth Proportional to 610,192.10, 842,158.31 and 389,524.71

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Solution

The fourth proportional to 610,192.10, 842,158.31 and 389,524.71 is: 537,603.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,192.10 : 842,158.31 = 389,524.71 : x
  2. Step 2: Convert to fraction form
    610,192.10/842,158.31 = 389,524.71/x
  3. Step 3: Cross multiply
    610,192.10x = 842,158.31 × 389,524.71
  4. Step 4: Simplify right side
    610,192.10x = 328,041,472,687.31
  5. Step 5: Solve for x
    x = 328,041,472,687.31/610,192.10
  6. Step 6: Final answer
    x = 537,603.60

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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.