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Finding the Fourth Proportional to 586,312.43, 809,130.94 and 344,591.55

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Solution

The fourth proportional to 586,312.43, 809,130.94 and 344,591.55 is: 475,547.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,312.43 : 809,130.94 = 344,591.55 : x
  2. Step 2: Convert to fraction form
    586,312.43/809,130.94 = 344,591.55/x
  3. Step 3: Cross multiply
    586,312.43x = 809,130.94 × 344,591.55
  4. Step 4: Simplify right side
    586,312.43x = 278,819,683,906.08
  5. Step 5: Solve for x
    x = 278,819,683,906.08/586,312.43
  6. Step 6: Final answer
    x = 475,547.97

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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.