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Finding the Fourth Proportional to 1,044,638.10, 1,566,957.66 and 689,569.14

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Solution

The fourth proportional to 1,044,638.10, 1,566,957.66 and 689,569.14 is: 1,034,354.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044,638.10 : 1,566,957.66 = 689,569.14 : x
  2. Step 2: Convert to fraction form
    1,044,638.10/1,566,957.66 = 689,569.14/x
  3. Step 3: Cross multiply
    1,044,638.10x = 1,566,957.66 × 689,569.14
  4. Step 4: Simplify right side
    1,044,638.10x = 1,080,525,646,022.61
  5. Step 5: Solve for x
    x = 1,080,525,646,022.61/1,044,638.10
  6. Step 6: Final answer
    x = 1,034,354.05

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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.