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Finding the Fourth Proportional to 406,069.48, 560,390.82 and 222,320.92

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Solution

The fourth proportional to 406,069.48, 560,390.82 and 222,320.92 is: 306,811.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,069.48 : 560,390.82 = 222,320.92 : x
  2. Step 2: Convert to fraction form
    406,069.48/560,390.82 = 222,320.92/x
  3. Step 3: Cross multiply
    406,069.48x = 560,390.82 × 222,320.92
  4. Step 4: Simplify right side
    406,069.48x = 124,586,602,661.95
  5. Step 5: Solve for x
    x = 124,586,602,661.95/406,069.48
  6. Step 6: Final answer
    x = 306,811.05

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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.