Home / 909,098.25-1,254,555.19-521,938.64

Finding the Fourth Proportional to 909,098.25, 1,254,555.19 and 521,938.64

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Solution

The fourth proportional to 909,098.25, 1,254,555.19 and 521,938.64 is: 720,275.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,098.25 : 1,254,555.19 = 521,938.64 : x
  2. Step 2: Convert to fraction form
    909,098.25/1,254,555.19 = 521,938.64/x
  3. Step 3: Cross multiply
    909,098.25x = 1,254,555.19 × 521,938.64
  4. Step 4: Simplify right side
    909,098.25x = 654,800,820,791.07
  5. Step 5: Solve for x
    x = 654,800,820,791.07/909,098.25
  6. Step 6: Final answer
    x = 720,275.09

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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.