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Finding the Fourth Proportional to 526,945.30, 790,543.70 and 171,959.96

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Solution

The fourth proportional to 526,945.30, 790,543.70 and 171,959.96 is: 257,980.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,945.30 : 790,543.70 = 171,959.96 : x
  2. Step 2: Convert to fraction form
    526,945.30/790,543.70 = 171,959.96/x
  3. Step 3: Cross multiply
    526,945.30x = 790,543.70 × 171,959.96
  4. Step 4: Simplify right side
    526,945.30x = 135,941,863,030.25
  5. Step 5: Solve for x
    x = 135,941,863,030.25/526,945.30
  6. Step 6: Final answer
    x = 257,980.98

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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.