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Finding the Fourth Proportional to 607,446.18, 838,308.42 and 349,320.06

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Solution

The fourth proportional to 607,446.18, 838,308.42 and 349,320.06 is: 482,080.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,446.18 : 838,308.42 = 349,320.06 : x
  2. Step 2: Convert to fraction form
    607,446.18/838,308.42 = 349,320.06/x
  3. Step 3: Cross multiply
    607,446.18x = 838,308.42 × 349,320.06
  4. Step 4: Simplify right side
    607,446.18x = 292,837,947,572.91
  5. Step 5: Solve for x
    x = 292,837,947,572.91/607,446.18
  6. Step 6: Final answer
    x = 482,080.48

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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.