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Finding the Fourth Proportional to 540,579.88, 746,118.66 and 314,355.88

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Solution

The fourth proportional to 540,579.88, 746,118.66 and 314,355.88 is: 433,879.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,579.88 : 746,118.66 = 314,355.88 : x
  2. Step 2: Convert to fraction form
    540,579.88/746,118.66 = 314,355.88/x
  3. Step 3: Cross multiply
    540,579.88x = 746,118.66 × 314,355.88
  4. Step 4: Simplify right side
    540,579.88x = 234,546,787,948.72
  5. Step 5: Solve for x
    x = 234,546,787,948.72/540,579.88
  6. Step 6: Final answer
    x = 433,879.98

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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.