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Finding the Fourth Proportional to 424,776.80, 586,073.40 and 263,638.64

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Solution

The fourth proportional to 424,776.80, 586,073.40 and 263,638.64 is: 363,747.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,776.80 : 586,073.40 = 263,638.64 : x
  2. Step 2: Convert to fraction form
    424,776.80/586,073.40 = 263,638.64/x
  3. Step 3: Cross multiply
    424,776.80x = 586,073.40 × 263,638.64
  4. Step 4: Simplify right side
    424,776.80x = 154,511,594,116.18
  5. Step 5: Solve for x
    x = 154,511,594,116.18/424,776.80
  6. Step 6: Final answer
    x = 363,747.72

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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.