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Finding the Fourth Proportional to 1,172,142, 1,617,555.96 and 635,598

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Solution

The fourth proportional to 1,172,142, 1,617,555.96 and 635,598 is: 877,125.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,142 : 1,617,555.96 = 635,598 : x
  2. Step 2: Convert to fraction form
    1,172,142/1,617,555.96 = 635,598/x
  3. Step 3: Cross multiply
    1,172,142x = 1,617,555.96 × 635,598
  4. Step 4: Simplify right side
    1,172,142x = 1,028,115,333,064.08
  5. Step 5: Solve for x
    x = 1,028,115,333,064.08/1,172,142
  6. Step 6: Final answer
    x = 877,125.24

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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.