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Finding the Fourth Proportional to 372,543.84, 556,111.08 and 344,789.28

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Solution

The fourth proportional to 372,543.84, 556,111.08 and 344,789.28 is: 514,680.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,543.84 : 556,111.08 = 344,789.28 : x
  2. Step 2: Convert to fraction form
    372,543.84/556,111.08 = 344,789.28/x
  3. Step 3: Cross multiply
    372,543.84x = 556,111.08 × 344,789.28
  4. Step 4: Simplify right side
    372,543.84x = 191,741,138,873.22
  5. Step 5: Solve for x
    x = 191,741,138,873.22/372,543.84
  6. Step 6: Final answer
    x = 514,680.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.