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Finding the Fourth Proportional to 540,042.41, 745,349.51 and 313,819.13

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Solution

The fourth proportional to 540,042.41, 745,349.51 and 313,819.13 is: 433,123.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,042.41 : 745,349.51 = 313,819.13 : x
  2. Step 2: Convert to fraction form
    540,042.41/745,349.51 = 313,819.13/x
  3. Step 3: Cross multiply
    540,042.41x = 745,349.51 × 313,819.13
  4. Step 4: Simplify right side
    540,042.41x = 233,904,934,774.13
  5. Step 5: Solve for x
    x = 233,904,934,774.13/540,042.41
  6. Step 6: Final answer
    x = 433,123.27

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1.5x scale

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.