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Finding the Fourth Proportional to 707,626.45, 976,514.86 and 401,700.16

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Solution

The fourth proportional to 707,626.45, 976,514.86 and 401,700.16 is: 554,340.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,626.45 : 976,514.86 = 401,700.16 : x
  2. Step 2: Convert to fraction form
    707,626.45/976,514.86 = 401,700.16/x
  3. Step 3: Cross multiply
    707,626.45x = 976,514.86 × 401,700.16
  4. Step 4: Simplify right side
    707,626.45x = 392,266,175,504.38
  5. Step 5: Solve for x
    x = 392,266,175,504.38/707,626.45
  6. Step 6: Final answer
    x = 554,340.75

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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.