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Finding the Fourth Proportional to 715,714.09, 988,023.62 and 454,200.86

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Solution

The fourth proportional to 715,714.09, 988,023.62 and 454,200.86 is: 627,011.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,714.09 : 988,023.62 = 454,200.86 : x
  2. Step 2: Convert to fraction form
    715,714.09/988,023.62 = 454,200.86/x
  3. Step 3: Cross multiply
    715,714.09x = 988,023.62 × 454,200.86
  4. Step 4: Simplify right side
    715,714.09x = 448,761,177,904.31
  5. Step 5: Solve for x
    x = 448,761,177,904.31/715,714.09
  6. Step 6: Final answer
    x = 627,011.80

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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.