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Finding the Fourth Proportional to 527,999.40, 791,999.10 and 154,022.40

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Solution

The fourth proportional to 527,999.40, 791,999.10 and 154,022.40 is: 231,033.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,999.40 : 791,999.10 = 154,022.40 : x
  2. Step 2: Convert to fraction form
    527,999.40/791,999.10 = 154,022.40/x
  3. Step 3: Cross multiply
    527,999.40x = 791,999.10 × 154,022.40
  4. Step 4: Simplify right side
    527,999.40x = 121,985,602,179.84
  5. Step 5: Solve for x
    x = 121,985,602,179.84/527,999.40
  6. Step 6: Final answer
    x = 231,033.60

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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.