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Finding the Fourth Proportional to 615,404.90, 847,999.05 and 454,004.90

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Solution

The fourth proportional to 615,404.90, 847,999.05 and 454,004.90 is: 625,597.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,404.90 : 847,999.05 = 454,004.90 : x
  2. Step 2: Convert to fraction form
    615,404.90/847,999.05 = 454,004.90/x
  3. Step 3: Cross multiply
    615,404.90x = 847,999.05 × 454,004.90
  4. Step 4: Simplify right side
    615,404.90x = 384,995,723,895.35
  5. Step 5: Solve for x
    x = 384,995,723,895.35/615,404.90
  6. Step 6: Final answer
    x = 625,597.43

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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.