Home / 909,098.75-1,254,555.87-521,939.14

Finding the Fourth Proportional to 909,098.75, 1,254,555.87 and 521,939.14

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Solution

The fourth proportional to 909,098.75, 1,254,555.87 and 521,939.14 is: 720,275.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,098.75 : 1,254,555.87 = 521,939.14 : x
  2. Step 2: Convert to fraction form
    909,098.75/1,254,555.87 = 521,939.14/x
  3. Step 3: Cross multiply
    909,098.75x = 1,254,555.87 × 521,939.14
  4. Step 4: Simplify right side
    909,098.75x = 654,801,811,869.75
  5. Step 5: Solve for x
    x = 654,801,811,869.75/909,098.75
  6. Step 6: Final answer
    x = 720,275.78

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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.