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Finding the Fourth Proportional to 516,774.45, 775,111.52 and 156,948.40

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Solution

The fourth proportional to 516,774.45, 775,111.52 and 156,948.40 is: 235,407.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,774.45 : 775,111.52 = 156,948.40 : x
  2. Step 2: Convert to fraction form
    516,774.45/775,111.52 = 156,948.40/x
  3. Step 3: Cross multiply
    516,774.45x = 775,111.52 × 156,948.40
  4. Step 4: Simplify right side
    516,774.45x = 121,652,512,885.57
  5. Step 5: Solve for x
    x = 121,652,512,885.57/516,774.45
  6. Step 6: Final answer
    x = 235,407.37

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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.