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Finding the Fourth Proportional to 527,999.92, 728,635.42 and 298,602.25

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Solution

The fourth proportional to 527,999.92, 728,635.42 and 298,602.25 is: 412,068.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,999.92 : 728,635.42 = 298,602.25 : x
  2. Step 2: Convert to fraction form
    527,999.92/728,635.42 = 298,602.25/x
  3. Step 3: Cross multiply
    527,999.92x = 728,635.42 × 298,602.25
  4. Step 4: Simplify right side
    527,999.92x = 217,572,170,705.51
  5. Step 5: Solve for x
    x = 217,572,170,705.51/527,999.92
  6. Step 6: Final answer
    x = 412,068.57

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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.