Home / 667,122.84-1,000,781.76-193,746.69

Finding the Fourth Proportional to 667,122.84, 1,000,781.76 and 193,746.69

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Solution

The fourth proportional to 667,122.84, 1,000,781.76 and 193,746.69 is: 290,648.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,122.84 : 1,000,781.76 = 193,746.69 : x
  2. Step 2: Convert to fraction form
    667,122.84/1,000,781.76 = 193,746.69/x
  3. Step 3: Cross multiply
    667,122.84x = 1,000,781.76 × 193,746.69
  4. Step 4: Simplify right side
    667,122.84x = 193,898,153,412.37
  5. Step 5: Solve for x
    x = 193,898,153,412.37/667,122.84
  6. Step 6: Final answer
    x = 290,648.35

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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.