Home / 1,289,792.68-1,934,655.90-343,171.40

Finding the Fourth Proportional to 1,289,792.68, 1,934,655.90 and 343,171.40

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Solution

The fourth proportional to 1,289,792.68, 1,934,655.90 and 343,171.40 is: 514,748.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,792.68 : 1,934,655.90 = 343,171.40 : x
  2. Step 2: Convert to fraction form
    1,289,792.68/1,934,655.90 = 343,171.40/x
  3. Step 3: Cross multiply
    1,289,792.68x = 1,934,655.90 × 343,171.40
  4. Step 4: Simplify right side
    1,289,792.68x = 663,918,573,721.26
  5. Step 5: Solve for x
    x = 663,918,573,721.26/1,289,792.68
  6. Step 6: Final answer
    x = 514,748.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.