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Finding the Fourth Proportional to 671,837.10, 927,119.16 and 385,338.90

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Solution

The fourth proportional to 671,837.10, 927,119.16 and 385,338.90 is: 531,758.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,837.10 : 927,119.16 = 385,338.90 : x
  2. Step 2: Convert to fraction form
    671,837.10/927,119.16 = 385,338.90/x
  3. Step 3: Cross multiply
    671,837.10x = 927,119.16 × 385,338.90
  4. Step 4: Simplify right side
    671,837.10x = 357,255,077,283.32
  5. Step 5: Solve for x
    x = 357,255,077,283.32/671,837.10
  6. Step 6: Final answer
    x = 531,758.48

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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.