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Finding the Fourth Proportional to 1,584,978.68, 2,186,696.58 and 1,041,407.12

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Solution

The fourth proportional to 1,584,978.68, 2,186,696.58 and 1,041,407.12 is: 1,436,764.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,584,978.68 : 2,186,696.58 = 1,041,407.12 : x
  2. Step 2: Convert to fraction form
    1,584,978.68/2,186,696.58 = 1,041,407.12/x
  3. Step 3: Cross multiply
    1,584,978.68x = 2,186,696.58 × 1,041,407.12
  4. Step 4: Simplify right side
    1,584,978.68x = 2,277,241,387,691.65
  5. Step 5: Solve for x
    x = 2,277,241,387,691.65/1,584,978.68
  6. Step 6: Final answer
    x = 1,436,764.68

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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.