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Finding the Fourth Proportional to 406,626.80, 560,960.96 and 245,430.32

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Solution

The fourth proportional to 406,626.80, 560,960.96 and 245,430.32 is: 338,582.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,626.80 : 560,960.96 = 245,430.32 : x
  2. Step 2: Convert to fraction form
    406,626.80/560,960.96 = 245,430.32/x
  3. Step 3: Cross multiply
    406,626.80x = 560,960.96 × 245,430.32
  4. Step 4: Simplify right side
    406,626.80x = 137,676,823,888.35
  5. Step 5: Solve for x
    x = 137,676,823,888.35/406,626.80
  6. Step 6: Final answer
    x = 338,582.76

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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.