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Finding the Fourth Proportional to 406,348.22, 560,764.75 and 245,172.13

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Solution

The fourth proportional to 406,348.22, 560,764.75 and 245,172.13 is: 338,340.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,348.22 : 560,764.75 = 245,172.13 : x
  2. Step 2: Convert to fraction form
    406,348.22/560,764.75 = 245,172.13/x
  3. Step 3: Cross multiply
    406,348.22x = 560,764.75 × 245,172.13
  4. Step 4: Simplify right side
    406,348.22x = 137,483,888,186.42
  5. Step 5: Solve for x
    x = 137,483,888,186.42/406,348.22
  6. Step 6: Final answer
    x = 338,340.08

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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.