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Finding the Fourth Proportional to 406,518.94, 561,000.65 and 225,233.72

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Solution

The fourth proportional to 406,518.94, 561,000.65 and 225,233.72 is: 310,825.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,518.94 : 561,000.65 = 225,233.72 : x
  2. Step 2: Convert to fraction form
    406,518.94/561,000.65 = 225,233.72/x
  3. Step 3: Cross multiply
    406,518.94x = 561,000.65 × 225,233.72
  4. Step 4: Simplify right side
    406,518.94x = 126,356,263,598.25
  5. Step 5: Solve for x
    x = 126,356,263,598.25/406,518.94
  6. Step 6: Final answer
    x = 310,825.04

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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.