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Finding the Fourth Proportional to 589,700.15, 813,590.45 and 480,616.92

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Solution

The fourth proportional to 589,700.15, 813,590.45 and 480,616.92 is: 663,091.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,700.15 : 813,590.45 = 480,616.92 : x
  2. Step 2: Convert to fraction form
    589,700.15/813,590.45 = 480,616.92/x
  3. Step 3: Cross multiply
    589,700.15x = 813,590.45 × 480,616.92
  4. Step 4: Simplify right side
    589,700.15x = 391,025,334,683.16
  5. Step 5: Solve for x
    x = 391,025,334,683.16/589,700.15
  6. Step 6: Final answer
    x = 663,091.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.