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Finding the Fourth Proportional to 528,040.70, 791,866.65 and 173,066.30

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Solution

The fourth proportional to 528,040.70, 791,866.65 and 173,066.30 is: 259,535.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,040.70 : 791,866.65 = 173,066.30 : x
  2. Step 2: Convert to fraction form
    528,040.70/791,866.65 = 173,066.30/x
  3. Step 3: Cross multiply
    528,040.70x = 791,866.65 × 173,066.30
  4. Step 4: Simplify right side
    528,040.70x = 137,045,431,208.90
  5. Step 5: Solve for x
    x = 137,045,431,208.90/528,040.70
  6. Step 6: Final answer
    x = 259,535.74

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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.