Home / 664,834.51-923,665.48-656,862.88

Finding the Fourth Proportional to 664,834.51, 923,665.48 and 656,862.88

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Solution

The fourth proportional to 664,834.51, 923,665.48 and 656,862.88 is: 912,590.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,834.51 : 923,665.48 = 656,862.88 : x
  2. Step 2: Convert to fraction form
    664,834.51/923,665.48 = 656,862.88/x
  3. Step 3: Cross multiply
    664,834.51x = 923,665.48 × 656,862.88
  4. Step 4: Simplify right side
    664,834.51x = 606,721,567,349.38
  5. Step 5: Solve for x
    x = 606,721,567,349.38/664,834.51
  6. Step 6: Final answer
    x = 912,590.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.