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Finding the Fourth Proportional to 576,989.10, 865,483.65 and 576,989.10

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Solution

The fourth proportional to 576,989.10, 865,483.65 and 576,989.10 is: 865,483.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,989.10 : 865,483.65 = 576,989.10 : x
  2. Step 2: Convert to fraction form
    576,989.10/865,483.65 = 576,989.10/x
  3. Step 3: Cross multiply
    576,989.10x = 865,483.65 × 576,989.10
  4. Step 4: Simplify right side
    576,989.10x = 499,374,632,278.22
  5. Step 5: Solve for x
    x = 499,374,632,278.22/576,989.10
  6. Step 6: Final answer
    x = 865,483.65

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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.