Home / 406,987.13-561,642.24-228,139.13

Finding the Fourth Proportional to 406,987.13, 561,642.24 and 228,139.13

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Solution

The fourth proportional to 406,987.13, 561,642.24 and 228,139.13 is: 314,832.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,987.13 : 561,642.24 = 228,139.13 : x
  2. Step 2: Convert to fraction form
    406,987.13/561,642.24 = 228,139.13/x
  3. Step 3: Cross multiply
    406,987.13x = 561,642.24 × 228,139.13
  4. Step 4: Simplify right side
    406,987.13x = 128,132,569,196.64
  5. Step 5: Solve for x
    x = 128,132,569,196.64/406,987.13
  6. Step 6: Final answer
    x = 314,832.00

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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.