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Finding the Fourth Proportional to 588,870.87, 812,641.94 and 320,598.87

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Solution

The fourth proportional to 588,870.87, 812,641.94 and 320,598.87 is: 442,426.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,870.87 : 812,641.94 = 320,598.87 : x
  2. Step 2: Convert to fraction form
    588,870.87/812,641.94 = 320,598.87/x
  3. Step 3: Cross multiply
    588,870.87x = 812,641.94 × 320,598.87
  4. Step 4: Simplify right side
    588,870.87x = 260,532,086,075.61
  5. Step 5: Solve for x
    x = 260,532,086,075.61/588,870.87
  6. Step 6: Final answer
    x = 442,426.51

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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.