Home / 1,253,136.16-1,729,329.65-680,176.45

Finding the Fourth Proportional to 1,253,136.16, 1,729,329.65 and 680,176.45

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Solution

The fourth proportional to 1,253,136.16, 1,729,329.65 and 680,176.45 is: 938,644.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,136.16 : 1,729,329.65 = 680,176.45 : x
  2. Step 2: Convert to fraction form
    1,253,136.16/1,729,329.65 = 680,176.45/x
  3. Step 3: Cross multiply
    1,253,136.16x = 1,729,329.65 × 680,176.45
  4. Step 4: Simplify right side
    1,253,136.16x = 1,176,249,302,216.74
  5. Step 5: Solve for x
    x = 1,176,249,302,216.74/1,253,136.16
  6. Step 6: Final answer
    x = 938,644.45

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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.