Home / 707,789.16-976,743.99-385,498.26

Finding the Fourth Proportional to 707,789.16, 976,743.99 and 385,498.26

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Solution

The fourth proportional to 707,789.16, 976,743.99 and 385,498.26 is: 531,984.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,789.16 : 976,743.99 = 385,498.26 : x
  2. Step 2: Convert to fraction form
    707,789.16/976,743.99 = 385,498.26/x
  3. Step 3: Cross multiply
    707,789.16x = 976,743.99 × 385,498.26
  4. Step 4: Simplify right side
    707,789.16x = 376,533,108,610.46
  5. Step 5: Solve for x
    x = 376,533,108,610.46/707,789.16
  6. Step 6: Final answer
    x = 531,984.85

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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.