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Finding the Fourth Proportional to 416,987.56, 575,442.48 and 226,000.90

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Solution

The fourth proportional to 416,987.56, 575,442.48 and 226,000.90 is: 311,881.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,987.56 : 575,442.48 = 226,000.90 : x
  2. Step 2: Convert to fraction form
    416,987.56/575,442.48 = 226,000.90/x
  3. Step 3: Cross multiply
    416,987.56x = 575,442.48 × 226,000.90
  4. Step 4: Simplify right side
    416,987.56x = 130,050,518,378.23
  5. Step 5: Solve for x
    x = 130,050,518,378.23/416,987.56
  6. Step 6: Final answer
    x = 311,881.05

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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.