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Finding the Fourth Proportional to 584,596.54, 806,780.55 and 329,854.78

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Solution

The fourth proportional to 584,596.54, 806,780.55 and 329,854.78 is: 455,220.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,596.54 : 806,780.55 = 329,854.78 : x
  2. Step 2: Convert to fraction form
    584,596.54/806,780.55 = 329,854.78/x
  3. Step 3: Cross multiply
    584,596.54x = 806,780.55 × 329,854.78
  4. Step 4: Simplify right side
    584,596.54x = 266,120,420,828.53
  5. Step 5: Solve for x
    x = 266,120,420,828.53/584,596.54
  6. Step 6: Final answer
    x = 455,220.66

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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.