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Finding the Fourth Proportional to 527,723.35, 728,255.34 and 286,003.35

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Solution

The fourth proportional to 527,723.35, 728,255.34 and 286,003.35 is: 394,683.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,723.35 : 728,255.34 = 286,003.35 : x
  2. Step 2: Convert to fraction form
    527,723.35/728,255.34 = 286,003.35/x
  3. Step 3: Cross multiply
    527,723.35x = 728,255.34 × 286,003.35
  4. Step 4: Simplify right side
    527,723.35x = 208,283,466,895.39
  5. Step 5: Solve for x
    x = 208,283,466,895.39/527,723.35
  6. Step 6: Final answer
    x = 394,683.06

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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.