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Finding the Fourth Proportional to 432,001.90, 648,002.85 and 432,001.90

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Solution

The fourth proportional to 432,001.90, 648,002.85 and 432,001.90 is: 648,002.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,001.90 : 648,002.85 = 432,001.90 : x
  2. Step 2: Convert to fraction form
    432,001.90/648,002.85 = 432,001.90/x
  3. Step 3: Cross multiply
    432,001.90x = 648,002.85 × 432,001.90
  4. Step 4: Simplify right side
    432,001.90x = 279,938,462,405.42
  5. Step 5: Solve for x
    x = 279,938,462,405.42/432,001.90
  6. Step 6: Final answer
    x = 648,002.85

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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.