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Finding the Fourth Proportional to 611,439.59, 917,353.11 and 476,964.72

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Solution

The fourth proportional to 611,439.59, 917,353.11 and 476,964.72 is: 715,598.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,439.59 : 917,353.11 = 476,964.72 : x
  2. Step 2: Convert to fraction form
    611,439.59/917,353.11 = 476,964.72/x
  3. Step 3: Cross multiply
    611,439.59x = 917,353.11 × 476,964.72
  4. Step 4: Simplify right side
    611,439.59x = 437,545,069,252.28
  5. Step 5: Solve for x
    x = 437,545,069,252.28/611,439.59
  6. Step 6: Final answer
    x = 715,598.20

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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.