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Finding the Fourth Proportional to 611,441.96, 913,045.48 and 499,344.55

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Solution

The fourth proportional to 611,441.96, 913,045.48 and 499,344.55 is: 745,654.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,441.96 : 913,045.48 = 499,344.55 : x
  2. Step 2: Convert to fraction form
    611,441.96/913,045.48 = 499,344.55/x
  3. Step 3: Cross multiply
    611,441.96x = 913,045.48 × 499,344.55
  4. Step 4: Simplify right side
    611,441.96x = 455,924,280,809.16
  5. Step 5: Solve for x
    x = 455,924,280,809.16/611,441.96
  6. Step 6: Final answer
    x = 745,654.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.