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Finding the Fourth Proportional to 632,549.79, 873,279.63 and 418,311.27

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Solution

The fourth proportional to 632,549.79, 873,279.63 and 418,311.27 is: 577,508.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,549.79 : 873,279.63 = 418,311.27 : x
  2. Step 2: Convert to fraction form
    632,549.79/873,279.63 = 418,311.27/x
  3. Step 3: Cross multiply
    632,549.79x = 873,279.63 × 418,311.27
  4. Step 4: Simplify right side
    632,549.79x = 365,302,711,090.43
  5. Step 5: Solve for x
    x = 365,302,711,090.43/632,549.79
  6. Step 6: Final answer
    x = 577,508.23

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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.