Home / 283,749.60-391,577.07-156,429.75

Finding the Fourth Proportional to 283,749.60, 391,577.07 and 156,429.75

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Solution

The fourth proportional to 283,749.60, 391,577.07 and 156,429.75 is: 215,874.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,749.60 : 391,577.07 = 156,429.75 : x
  2. Step 2: Convert to fraction form
    283,749.60/391,577.07 = 156,429.75/x
  3. Step 3: Cross multiply
    283,749.60x = 391,577.07 × 156,429.75
  4. Step 4: Simplify right side
    283,749.60x = 61,254,303,165.83
  5. Step 5: Solve for x
    x = 61,254,303,165.83/283,749.60
  6. Step 6: Final answer
    x = 215,874.50

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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.