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Finding the Fourth Proportional to 666,023.55, 919,532.78 and 462,003.11

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Solution

The fourth proportional to 666,023.55, 919,532.78 and 462,003.11 is: 637,855.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,023.55 : 919,532.78 = 462,003.11 : x
  2. Step 2: Convert to fraction form
    666,023.55/919,532.78 = 462,003.11/x
  3. Step 3: Cross multiply
    666,023.55x = 919,532.78 × 462,003.11
  4. Step 4: Simplify right side
    666,023.55x = 424,826,997,199.27
  5. Step 5: Solve for x
    x = 424,826,997,199.27/666,023.55
  6. Step 6: Final answer
    x = 637,855.82

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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.