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Finding the Fourth Proportional to 625,033.48, 937,593.96 and 309,405.64

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Solution

The fourth proportional to 625,033.48, 937,593.96 and 309,405.64 is: 464,130.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,033.48 : 937,593.96 = 309,405.64 : x
  2. Step 2: Convert to fraction form
    625,033.48/937,593.96 = 309,405.64/x
  3. Step 3: Cross multiply
    625,033.48x = 937,593.96 × 309,405.64
  4. Step 4: Simplify right side
    625,033.48x = 290,096,859,253.93
  5. Step 5: Solve for x
    x = 290,096,859,253.93/625,033.48
  6. Step 6: Final answer
    x = 464,130.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.