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Finding the Fourth Proportional to 576,117.90, 864,176.85 and 455,849.10

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Solution

The fourth proportional to 576,117.90, 864,176.85 and 455,849.10 is: 683,773.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,117.90 : 864,176.85 = 455,849.10 : x
  2. Step 2: Convert to fraction form
    576,117.90/864,176.85 = 455,849.10/x
  3. Step 3: Cross multiply
    576,117.90x = 864,176.85 × 455,849.10
  4. Step 4: Simplify right side
    576,117.90x = 393,934,239,313.34
  5. Step 5: Solve for x
    x = 393,934,239,313.34/576,117.90
  6. Step 6: Final answer
    x = 683,773.65

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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.