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Finding the Fourth Proportional to 586,313.43, 809,132.32 and 344,592.55

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Solution

The fourth proportional to 586,313.43, 809,132.32 and 344,592.55 is: 475,549.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,313.43 : 809,132.32 = 344,592.55 : x
  2. Step 2: Convert to fraction form
    586,313.43/809,132.32 = 344,592.55/x
  3. Step 3: Cross multiply
    586,313.43x = 809,132.32 × 344,592.55
  4. Step 4: Simplify right side
    586,313.43x = 278,820,969,436.22
  5. Step 5: Solve for x
    x = 278,820,969,436.22/586,313.43
  6. Step 6: Final answer
    x = 475,549.35

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1.5x scale

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.