Home / 689,221.16-951,125.76-383,290.88

Finding the Fourth Proportional to 689,221.16, 951,125.76 and 383,290.88

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Solution

The fourth proportional to 689,221.16, 951,125.76 and 383,290.88 is: 528,941.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,221.16 : 951,125.76 = 383,290.88 : x
  2. Step 2: Convert to fraction form
    689,221.16/951,125.76 = 383,290.88/x
  3. Step 3: Cross multiply
    689,221.16x = 951,125.76 × 383,290.88
  4. Step 4: Simplify right side
    689,221.16x = 364,557,829,541.07
  5. Step 5: Solve for x
    x = 364,557,829,541.07/689,221.16
  6. Step 6: Final answer
    x = 528,941.73

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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.