Home / 815,784.33-1,125,657.39-453,174.87

Finding the Fourth Proportional to 815,784.33, 1,125,657.39 and 453,174.87

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Solution

The fourth proportional to 815,784.33, 1,125,657.39 and 453,174.87 is: 625,311.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,784.33 : 1,125,657.39 = 453,174.87 : x
  2. Step 2: Convert to fraction form
    815,784.33/1,125,657.39 = 453,174.87/x
  3. Step 3: Cross multiply
    815,784.33x = 1,125,657.39 × 453,174.87
  4. Step 4: Simplify right side
    815,784.33x = 510,119,641,377.79
  5. Step 5: Solve for x
    x = 510,119,641,377.79/815,784.33
  6. Step 6: Final answer
    x = 625,311.89

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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.