Home / 406,923.60-561,561.30-225,643.17

Finding the Fourth Proportional to 406,923.60, 561,561.30 and 225,643.17

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Solution

The fourth proportional to 406,923.60, 561,561.30 and 225,643.17 is: 311,391.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,923.60 : 561,561.30 = 225,643.17 : x
  2. Step 2: Convert to fraction form
    406,923.60/561,561.30 = 225,643.17/x
  3. Step 3: Cross multiply
    406,923.60x = 561,561.30 × 225,643.17
  4. Step 4: Simplify right side
    406,923.60x = 126,712,471,881.32
  5. Step 5: Solve for x
    x = 126,712,471,881.32/406,923.60
  6. Step 6: Final answer
    x = 311,391.31

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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.