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Finding the Fourth Proportional to 326,805.55, 488,703.40 and 310,862.32

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Solution

The fourth proportional to 326,805.55, 488,703.40 and 310,862.32 is: 464,861.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,805.55 : 488,703.40 = 310,862.32 : x
  2. Step 2: Convert to fraction form
    326,805.55/488,703.40 = 310,862.32/x
  3. Step 3: Cross multiply
    326,805.55x = 488,703.40 × 310,862.32
  4. Step 4: Simplify right side
    326,805.55x = 151,919,471,772.46
  5. Step 5: Solve for x
    x = 151,919,471,772.46/326,805.55
  6. Step 6: Final answer
    x = 464,861.97

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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.