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Finding the Fourth Proportional to 431,403.60, 595,342.80 and 240,410.46

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Solution

The fourth proportional to 431,403.60, 595,342.80 and 240,410.46 is: 331,769.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,403.60 : 595,342.80 = 240,410.46 : x
  2. Step 2: Convert to fraction form
    431,403.60/595,342.80 = 240,410.46/x
  3. Step 3: Cross multiply
    431,403.60x = 595,342.80 × 240,410.46
  4. Step 4: Simplify right side
    431,403.60x = 143,126,636,405.69
  5. Step 5: Solve for x
    x = 143,126,636,405.69/431,403.60
  6. Step 6: Final answer
    x = 331,769.68

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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.