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Finding the Fourth Proportional to 916,892.65, 1,375,637.82 and 461,248.71

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Solution

The fourth proportional to 916,892.65, 1,375,637.82 and 461,248.71 is: 692,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,892.65 : 1,375,637.82 = 461,248.71 : x
  2. Step 2: Convert to fraction form
    916,892.65/1,375,637.82 = 461,248.71/x
  3. Step 3: Cross multiply
    916,892.65x = 1,375,637.82 × 461,248.71
  4. Step 4: Simplify right side
    916,892.65x = 634,511,169,902.21
  5. Step 5: Solve for x
    x = 634,511,169,902.21/916,892.65
  6. Step 6: Final answer
    x = 692,023.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.