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Finding the Fourth Proportional to 487,045.44, 730,224.72 and 187,274.16

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Solution

The fourth proportional to 487,045.44, 730,224.72 and 187,274.16 is: 280,779.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,045.44 : 730,224.72 = 187,274.16 : x
  2. Step 2: Convert to fraction form
    487,045.44/730,224.72 = 187,274.16/x
  3. Step 3: Cross multiply
    487,045.44x = 730,224.72 × 187,274.16
  4. Step 4: Simplify right side
    487,045.44x = 136,752,221,049.24
  5. Step 5: Solve for x
    x = 136,752,221,049.24/487,045.44
  6. Step 6: Final answer
    x = 280,779.18

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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.