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Finding the Fourth Proportional to 1,234,359.89, 1,849,728.38 and 695,664.88

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Solution

The fourth proportional to 1,234,359.89, 1,849,728.38 and 695,664.88 is: 1,042,476.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234,359.89 : 1,849,728.38 = 695,664.88 : x
  2. Step 2: Convert to fraction form
    1,234,359.89/1,849,728.38 = 695,664.88/x
  3. Step 3: Cross multiply
    1,234,359.89x = 1,849,728.38 × 695,664.88
  4. Step 4: Simplify right side
    1,234,359.89x = 1,286,791,070,561.57
  5. Step 5: Solve for x
    x = 1,286,791,070,561.57/1,234,359.89
  6. Step 6: Final answer
    x = 1,042,476.42

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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.