Home / 406,853.04-561,515.32-225,605.28

Finding the Fourth Proportional to 406,853.04, 561,515.32 and 225,605.28

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Solution

The fourth proportional to 406,853.04, 561,515.32 and 225,605.28 is: 311,367.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,853.04 : 561,515.32 = 225,605.28 : x
  2. Step 2: Convert to fraction form
    406,853.04/561,515.32 = 225,605.28/x
  3. Step 3: Cross multiply
    406,853.04x = 561,515.32 × 225,605.28
  4. Step 4: Simplify right side
    406,853.04x = 126,680,820,992.89
  5. Step 5: Solve for x
    x = 126,680,820,992.89/406,853.04
  6. Step 6: Final answer
    x = 311,367.52

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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.