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Finding the Fourth Proportional to 625,291.02, 863,199.17 and 418,914.77

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Solution

The fourth proportional to 625,291.02, 863,199.17 and 418,914.77 is: 578,301.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,291.02 : 863,199.17 = 418,914.77 : x
  2. Step 2: Convert to fraction form
    625,291.02/863,199.17 = 418,914.77/x
  3. Step 3: Cross multiply
    625,291.02x = 863,199.17 × 418,914.77
  4. Step 4: Simplify right side
    625,291.02x = 361,606,875,354.17
  5. Step 5: Solve for x
    x = 361,606,875,354.17/625,291.02
  6. Step 6: Final answer
    x = 578,301.72

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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.