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Finding the Fourth Proportional to 700,199.34, 966,393.10 and 405,805.26

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Solution

The fourth proportional to 700,199.34, 966,393.10 and 405,805.26 is: 560,079.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,199.34 : 966,393.10 = 405,805.26 : x
  2. Step 2: Convert to fraction form
    700,199.34/966,393.10 = 405,805.26/x
  3. Step 3: Cross multiply
    700,199.34x = 966,393.10 × 405,805.26
  4. Step 4: Simplify right side
    700,199.34x = 392,167,403,207.71
  5. Step 5: Solve for x
    x = 392,167,403,207.71/700,199.34
  6. Step 6: Final answer
    x = 560,079.65

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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.