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Finding the Fourth Proportional to 434,432.39, 599,510.90 and 243,449.51

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Solution

The fourth proportional to 434,432.39, 599,510.90 and 243,449.51 is: 335,957.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,432.39 : 599,510.90 = 243,449.51 : x
  2. Step 2: Convert to fraction form
    434,432.39/599,510.90 = 243,449.51/x
  3. Step 3: Cross multiply
    434,432.39x = 599,510.90 × 243,449.51
  4. Step 4: Simplify right side
    434,432.39x = 145,950,632,455.73
  5. Step 5: Solve for x
    x = 145,950,632,455.73/434,432.39
  6. Step 6: Final answer
    x = 335,957.07

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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.