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Finding the Fourth Proportional to 425,993.76, 587,610.90 and 272,980.44

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Solution

The fourth proportional to 425,993.76, 587,610.90 and 272,980.44 is: 376,546.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,993.76 : 587,610.90 = 272,980.44 : x
  2. Step 2: Convert to fraction form
    425,993.76/587,610.90 = 272,980.44/x
  3. Step 3: Cross multiply
    425,993.76x = 587,610.90 × 272,980.44
  4. Step 4: Simplify right side
    425,993.76x = 160,406,282,030.80
  5. Step 5: Solve for x
    x = 160,406,282,030.80/425,993.76
  6. Step 6: Final answer
    x = 376,546.08

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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.