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Finding the Fourth Proportional to 580,916.05, 870,631.83 and 468,649.21

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Solution

The fourth proportional to 580,916.05, 870,631.83 and 468,649.21 is: 702,375.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,916.05 : 870,631.83 = 468,649.21 : x
  2. Step 2: Convert to fraction form
    580,916.05/870,631.83 = 468,649.21/x
  3. Step 3: Cross multiply
    580,916.05x = 870,631.83 × 468,649.21
  4. Step 4: Simplify right side
    580,916.05x = 408,020,919,330.35
  5. Step 5: Solve for x
    x = 408,020,919,330.35/580,916.05
  6. Step 6: Final answer
    x = 702,375.01

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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.