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Finding the Fourth Proportional to 569,853.46, 786,417.20 and 324,874.45

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Solution

The fourth proportional to 569,853.46, 786,417.20 and 324,874.45 is: 448,337.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,853.46 : 786,417.20 = 324,874.45 : x
  2. Step 2: Convert to fraction form
    569,853.46/786,417.20 = 324,874.45/x
  3. Step 3: Cross multiply
    569,853.46x = 786,417.20 × 324,874.45
  4. Step 4: Simplify right side
    569,853.46x = 255,486,855,320.54
  5. Step 5: Solve for x
    x = 255,486,855,320.54/569,853.46
  6. Step 6: Final answer
    x = 448,337.82

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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.