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Finding the Fourth Proportional to 677,995.65, 935,565.88 and 406,056.58

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Solution

The fourth proportional to 677,995.65, 935,565.88 and 406,056.58 is: 560,317.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,995.65 : 935,565.88 = 406,056.58 : x
  2. Step 2: Convert to fraction form
    677,995.65/935,565.88 = 406,056.58/x
  3. Step 3: Cross multiply
    677,995.65x = 935,565.88 × 406,056.58
  4. Step 4: Simplify right side
    677,995.65x = 379,892,676,919.66
  5. Step 5: Solve for x
    x = 379,892,676,919.66/677,995.65
  6. Step 6: Final answer
    x = 560,317.28

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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.