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Finding the Fourth Proportional to 589,705.96, 813,598.45 and 480,622.72

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Solution

The fourth proportional to 589,705.96, 813,598.45 and 480,622.72 is: 663,099.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,705.96 : 813,598.45 = 480,622.72 : x
  2. Step 2: Convert to fraction form
    589,705.96/813,598.45 = 480,622.72/x
  3. Step 3: Cross multiply
    589,705.96x = 813,598.45 × 480,622.72
  4. Step 4: Simplify right side
    589,705.96x = 391,033,900,026.78
  5. Step 5: Solve for x
    x = 391,033,900,026.78/589,705.96
  6. Step 6: Final answer
    x = 663,099.79

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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.