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Finding the Fourth Proportional to 693,679.86, 957,400.02 and 403,381.26

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Solution

The fourth proportional to 693,679.86, 957,400.02 and 403,381.26 is: 556,736.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,679.86 : 957,400.02 = 403,381.26 : x
  2. Step 2: Convert to fraction form
    693,679.86/957,400.02 = 403,381.26/x
  3. Step 3: Cross multiply
    693,679.86x = 957,400.02 × 403,381.26
  4. Step 4: Simplify right side
    693,679.86x = 386,197,226,391.63
  5. Step 5: Solve for x
    x = 386,197,226,391.63/693,679.86
  6. Step 6: Final answer
    x = 556,736.97

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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.