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Finding the Fourth Proportional to 614,358.60, 848,338.56 and 385,301.40

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Solution

The fourth proportional to 614,358.60, 848,338.56 and 385,301.40 is: 532,044.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,358.60 : 848,338.56 = 385,301.40 : x
  2. Step 2: Convert to fraction form
    614,358.60/848,338.56 = 385,301.40/x
  3. Step 3: Cross multiply
    614,358.60x = 848,338.56 × 385,301.40
  4. Step 4: Simplify right side
    614,358.60x = 326,866,034,841.98
  5. Step 5: Solve for x
    x = 326,866,034,841.98/614,358.60
  6. Step 6: Final answer
    x = 532,044.37

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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.