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Finding the Fourth Proportional to 993,462.80, 1,489,351.80 and 362,008.40

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Solution

The fourth proportional to 993,462.80, 1,489,351.80 and 362,008.40 is: 542,705.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,462.80 : 1,489,351.80 = 362,008.40 : x
  2. Step 2: Convert to fraction form
    993,462.80/1,489,351.80 = 362,008.40/x
  3. Step 3: Cross multiply
    993,462.80x = 1,489,351.80 × 362,008.40
  4. Step 4: Simplify right side
    993,462.80x = 539,157,862,155.12
  5. Step 5: Solve for x
    x = 539,157,862,155.12/993,462.80
  6. Step 6: Final answer
    x = 542,705.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.