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Finding the Fourth Proportional to 476,003.59, 656,881.09 and 258,211.65

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Solution

The fourth proportional to 476,003.59, 656,881.09 and 258,211.65 is: 356,329.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,003.59 : 656,881.09 = 258,211.65 : x
  2. Step 2: Convert to fraction form
    476,003.59/656,881.09 = 258,211.65/x
  3. Step 3: Cross multiply
    476,003.59x = 656,881.09 × 258,211.65
  4. Step 4: Simplify right side
    476,003.59x = 169,614,349,677.96
  5. Step 5: Solve for x
    x = 169,614,349,677.96/476,003.59
  6. Step 6: Final answer
    x = 356,329.98

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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.