Home / 436,386.49-654,579.41-136,890.20

Finding the Fourth Proportional to 436,386.49, 654,579.41 and 136,890.20

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Solution

The fourth proportional to 436,386.49, 654,579.41 and 136,890.20 is: 205,335.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,386.49 : 654,579.41 = 136,890.20 : x
  2. Step 2: Convert to fraction form
    436,386.49/654,579.41 = 136,890.20/x
  3. Step 3: Cross multiply
    436,386.49x = 654,579.41 × 136,890.20
  4. Step 4: Simplify right side
    436,386.49x = 89,605,506,350.78
  5. Step 5: Solve for x
    x = 89,605,506,350.78/436,386.49
  6. Step 6: Final answer
    x = 205,335.20

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1.5x scale

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.