Home / 436,220.16-654,329.28-136,723.60

Finding the Fourth Proportional to 436,220.16, 654,329.28 and 136,723.60

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Solution

The fourth proportional to 436,220.16, 654,329.28 and 136,723.60 is: 205,085.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,220.16 : 654,329.28 = 136,723.60 : x
  2. Step 2: Convert to fraction form
    436,220.16/654,329.28 = 136,723.60/x
  3. Step 3: Cross multiply
    436,220.16x = 654,329.28 × 136,723.60
  4. Step 4: Simplify right side
    436,220.16x = 89,462,254,747.01
  5. Step 5: Solve for x
    x = 89,462,254,747.01/436,220.16
  6. Step 6: Final answer
    x = 205,085.10

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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.