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Finding the Fourth Proportional to 406,478.40, 560,932.59 and 245,340.24

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Solution

The fourth proportional to 406,478.40, 560,932.59 and 245,340.24 is: 338,564.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,478.40 : 560,932.59 = 245,340.24 : x
  2. Step 2: Convert to fraction form
    406,478.40/560,932.59 = 245,340.24/x
  3. Step 3: Cross multiply
    406,478.40x = 560,932.59 × 245,340.24
  4. Step 4: Simplify right side
    406,478.40x = 137,619,336,254.42
  5. Step 5: Solve for x
    x = 137,619,336,254.42/406,478.40
  6. Step 6: Final answer
    x = 338,564.94

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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.