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Finding the Fourth Proportional to 621,833.55, 927,900.47 and 554,812.95

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Solution

The fourth proportional to 621,833.55, 927,900.47 and 554,812.95 is: 827,892.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,833.55 : 927,900.47 = 554,812.95 : x
  2. Step 2: Convert to fraction form
    621,833.55/927,900.47 = 554,812.95/x
  3. Step 3: Cross multiply
    621,833.55x = 927,900.47 × 554,812.95
  4. Step 4: Simplify right side
    621,833.55x = 514,811,198,454.12
  5. Step 5: Solve for x
    x = 514,811,198,454.12/621,833.55
  6. Step 6: Final answer
    x = 827,892.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.