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Finding the Fourth Proportional to 607,419.61, 838,401.18 and 349,324.75

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Solution

The fourth proportional to 607,419.61, 838,401.18 and 349,324.75 is: 482,161.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,419.61 : 838,401.18 = 349,324.75 : x
  2. Step 2: Convert to fraction form
    607,419.61/838,401.18 = 349,324.75/x
  3. Step 3: Cross multiply
    607,419.61x = 838,401.18 × 349,324.75
  4. Step 4: Simplify right side
    607,419.61x = 292,874,284,306.19
  5. Step 5: Solve for x
    x = 292,874,284,306.19/607,419.61
  6. Step 6: Final answer
    x = 482,161.39

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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.