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Finding the Fourth Proportional to 598,813.90, 896,908.65 and 520,081.90

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Solution

The fourth proportional to 598,813.90, 896,908.65 and 520,081.90 is: 778,983.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,813.90 : 896,908.65 = 520,081.90 : x
  2. Step 2: Convert to fraction form
    598,813.90/896,908.65 = 520,081.90/x
  3. Step 3: Cross multiply
    598,813.90x = 896,908.65 × 520,081.90
  4. Step 4: Simplify right side
    598,813.90x = 466,465,954,818.44
  5. Step 5: Solve for x
    x = 466,465,954,818.44/598,813.90
  6. Step 6: Final answer
    x = 778,983.18

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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.