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Finding the Fourth Proportional to 677,800.74, 935,366.13 and 375,994.74

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Solution

The fourth proportional to 677,800.74, 935,366.13 and 375,994.74 is: 518,873.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,800.74 : 935,366.13 = 375,994.74 : x
  2. Step 2: Convert to fraction form
    677,800.74/935,366.13 = 375,994.74/x
  3. Step 3: Cross multiply
    677,800.74x = 935,366.13 × 375,994.74
  4. Step 4: Simplify right side
    677,800.74x = 351,692,744,854.16
  5. Step 5: Solve for x
    x = 351,692,744,854.16/677,800.74
  6. Step 6: Final answer
    x = 518,873.36

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Double scale
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Similar ratio
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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.