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Finding the Fourth Proportional to 616,257.90, 925,078.05 and 367,080.30

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Solution

The fourth proportional to 616,257.90, 925,078.05 and 367,080.30 is: 551,032.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,257.90 : 925,078.05 = 367,080.30 : x
  2. Step 2: Convert to fraction form
    616,257.90/925,078.05 = 367,080.30/x
  3. Step 3: Cross multiply
    616,257.90x = 925,078.05 × 367,080.30
  4. Step 4: Simplify right side
    616,257.90x = 339,577,928,117.42
  5. Step 5: Solve for x
    x = 339,577,928,117.42/616,257.90
  6. Step 6: Final answer
    x = 551,032.17

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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.