Home / 689,278.08-951,194.40-383,351.52

Finding the Fourth Proportional to 689,278.08, 951,194.40 and 383,351.52

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Solution

The fourth proportional to 689,278.08, 951,194.40 and 383,351.52 is: 529,019.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,278.08 : 951,194.40 = 383,351.52 : x
  2. Step 2: Convert to fraction form
    689,278.08/951,194.40 = 383,351.52/x
  3. Step 3: Cross multiply
    689,278.08x = 951,194.40 × 383,351.52
  4. Step 4: Simplify right side
    689,278.08x = 364,641,819,055.49
  5. Step 5: Solve for x
    x = 364,641,819,055.49/689,278.08
  6. Step 6: Final answer
    x = 529,019.90

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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.