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Finding the Fourth Proportional to 598,778.40, 896,855.40 and 520,046.40

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Solution

The fourth proportional to 598,778.40, 896,855.40 and 520,046.40 is: 778,929.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,778.40 : 896,855.40 = 520,046.40 : x
  2. Step 2: Convert to fraction form
    598,778.40/896,855.40 = 520,046.40/x
  3. Step 3: Cross multiply
    598,778.40x = 896,855.40 × 520,046.40
  4. Step 4: Simplify right side
    598,778.40x = 466,406,422,090.56
  5. Step 5: Solve for x
    x = 466,406,422,090.56/598,778.40
  6. Step 6: Final answer
    x = 778,929.94

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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.