Home / 406,678.03-561,200.40-225,393.06

Finding the Fourth Proportional to 406,678.03, 561,200.40 and 225,393.06

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Solution

The fourth proportional to 406,678.03, 561,200.40 and 225,393.06 is: 311,033.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,678.03 : 561,200.40 = 225,393.06 : x
  2. Step 2: Convert to fraction form
    406,678.03/561,200.40 = 225,393.06/x
  3. Step 3: Cross multiply
    406,678.03x = 561,200.40 × 225,393.06
  4. Step 4: Simplify right side
    406,678.03x = 126,490,675,429.22
  5. Step 5: Solve for x
    x = 126,490,675,429.22/406,678.03
  6. Step 6: Final answer
    x = 311,033.95

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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.