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Finding the Fourth Proportional to 338,313.32, 507,273.11 and 127,967.66

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Solution

The fourth proportional to 338,313.32, 507,273.11 and 127,967.66 is: 191,877.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,313.32 : 507,273.11 = 127,967.66 : x
  2. Step 2: Convert to fraction form
    338,313.32/507,273.11 = 127,967.66/x
  3. Step 3: Cross multiply
    338,313.32x = 507,273.11 × 127,967.66
  4. Step 4: Simplify right side
    338,313.32x = 64,914,549,691.42
  5. Step 5: Solve for x
    x = 64,914,549,691.42/338,313.32
  6. Step 6: Final answer
    x = 191,877.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.