Home / 403,868.09-557,420.67-240,620.23

Finding the Fourth Proportional to 403,868.09, 557,420.67 and 240,620.23

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Solution

The fourth proportional to 403,868.09, 557,420.67 and 240,620.23 is: 332,105.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,868.09 : 557,420.67 = 240,620.23 : x
  2. Step 2: Convert to fraction form
    403,868.09/557,420.67 = 240,620.23/x
  3. Step 3: Cross multiply
    403,868.09x = 557,420.67 × 240,620.23
  4. Step 4: Simplify right side
    403,868.09x = 134,126,689,822.15
  5. Step 5: Solve for x
    x = 134,126,689,822.15/403,868.09
  6. Step 6: Final answer
    x = 332,105.19

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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.