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Finding the Fourth Proportional to 612,562.20, 917,000.10 and 538,834.20

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Solution

The fourth proportional to 612,562.20, 917,000.10 and 538,834.20 is: 806,629.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,562.20 : 917,000.10 = 538,834.20 : x
  2. Step 2: Convert to fraction form
    612,562.20/917,000.10 = 538,834.20/x
  3. Step 3: Cross multiply
    612,562.20x = 917,000.10 × 538,834.20
  4. Step 4: Simplify right side
    612,562.20x = 494,111,015,283.42
  5. Step 5: Solve for x
    x = 494,111,015,283.42/612,562.20
  6. Step 6: Final answer
    x = 806,629.95

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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.