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Finding the Fourth Proportional to 418,782.27, 623,437.14 and 416,291.13

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Solution

The fourth proportional to 418,782.27, 623,437.14 and 416,291.13 is: 619,728.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,782.27 : 623,437.14 = 416,291.13 : x
  2. Step 2: Convert to fraction form
    418,782.27/623,437.14 = 416,291.13/x
  3. Step 3: Cross multiply
    418,782.27x = 623,437.14 × 416,291.13
  4. Step 4: Simplify right side
    418,782.27x = 259,531,350,714.02
  5. Step 5: Solve for x
    x = 259,531,350,714.02/418,782.27
  6. Step 6: Final answer
    x = 619,728.60

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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.