Home / 905,201.38-1,249,172.70-497,294.44

Finding the Fourth Proportional to 905,201.38, 1,249,172.70 and 497,294.44

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Solution

The fourth proportional to 905,201.38, 1,249,172.70 and 497,294.44 is: 686,263.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,201.38 : 1,249,172.70 = 497,294.44 : x
  2. Step 2: Convert to fraction form
    905,201.38/1,249,172.70 = 497,294.44/x
  3. Step 3: Cross multiply
    905,201.38x = 1,249,172.70 × 497,294.44
  4. Step 4: Simplify right side
    905,201.38x = 621,206,638,309.79
  5. Step 5: Solve for x
    x = 621,206,638,309.79/905,201.38
  6. Step 6: Final answer
    x = 686,263.47

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Double scale
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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.