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Finding the Fourth Proportional to 1,293,133.14, 1,784,522.88 and 749,583.86

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Solution

The fourth proportional to 1,293,133.14, 1,784,522.88 and 749,583.86 is: 1,034,425.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,133.14 : 1,784,522.88 = 749,583.86 : x
  2. Step 2: Convert to fraction form
    1,293,133.14/1,784,522.88 = 749,583.86/x
  3. Step 3: Cross multiply
    1,293,133.14x = 1,784,522.88 × 749,583.86
  4. Step 4: Simplify right side
    1,293,133.14x = 1,337,649,539,726.10
  5. Step 5: Solve for x
    x = 1,337,649,539,726.10/1,293,133.14
  6. Step 6: Final answer
    x = 1,034,425.23

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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.