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Finding the Fourth Proportional to 526,112.64, 725,861.16 and 296,641.08

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Solution

The fourth proportional to 526,112.64, 725,861.16 and 296,641.08 is: 409,266.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,112.64 : 725,861.16 = 296,641.08 : x
  2. Step 2: Convert to fraction form
    526,112.64/725,861.16 = 296,641.08/x
  3. Step 3: Cross multiply
    526,112.64x = 725,861.16 × 296,641.08
  4. Step 4: Simplify right side
    526,112.64x = 215,320,238,432.45
  5. Step 5: Solve for x
    x = 215,320,238,432.45/526,112.64
  6. Step 6: Final answer
    x = 409,266.42

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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.