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Finding the Fourth Proportional to 672,663.60, 927,750.85 and 430,968.78

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Solution

The fourth proportional to 672,663.60, 927,750.85 and 430,968.78 is: 594,400.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,663.60 : 927,750.85 = 430,968.78 : x
  2. Step 2: Convert to fraction form
    672,663.60/927,750.85 = 430,968.78/x
  3. Step 3: Cross multiply
    672,663.60x = 927,750.85 × 430,968.78
  4. Step 4: Simplify right side
    672,663.60x = 399,831,650,891.04
  5. Step 5: Solve for x
    x = 399,831,650,891.04/672,663.60
  6. Step 6: Final answer
    x = 594,400.61

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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.