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Finding the Fourth Proportional to 587,132.40, 879,386.40 and 482,156.40

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Solution

The fourth proportional to 587,132.40, 879,386.40 and 482,156.40 is: 722,157.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,132.40 : 879,386.40 = 482,156.40 : x
  2. Step 2: Convert to fraction form
    587,132.40/879,386.40 = 482,156.40/x
  3. Step 3: Cross multiply
    587,132.40x = 879,386.40 × 482,156.40
  4. Step 4: Simplify right side
    587,132.40x = 424,001,780,832.96
  5. Step 5: Solve for x
    x = 424,001,780,832.96/587,132.40
  6. Step 6: Final answer
    x = 722,157.01

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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.