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Finding the Fourth Proportional to 666,002.01, 918,469.50 and 436,475.70

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Solution

The fourth proportional to 666,002.01, 918,469.50 and 436,475.70 is: 601,934.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,002.01 : 918,469.50 = 436,475.70 : x
  2. Step 2: Convert to fraction form
    666,002.01/918,469.50 = 436,475.70/x
  3. Step 3: Cross multiply
    666,002.01x = 918,469.50 × 436,475.70
  4. Step 4: Simplify right side
    666,002.01x = 400,889,617,941.15
  5. Step 5: Solve for x
    x = 400,889,617,941.15/666,002.01
  6. Step 6: Final answer
    x = 601,934.55

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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.