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Finding the Fourth Proportional to 693,298.92, 956,758.84 and 406,823.78

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Solution

The fourth proportional to 693,298.92, 956,758.84 and 406,823.78 is: 561,420.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,298.92 : 956,758.84 = 406,823.78 : x
  2. Step 2: Convert to fraction form
    693,298.92/956,758.84 = 406,823.78/x
  3. Step 3: Cross multiply
    693,298.92x = 956,758.84 × 406,823.78
  4. Step 4: Simplify right side
    693,298.92x = 389,232,247,837.22
  5. Step 5: Solve for x
    x = 389,232,247,837.22/693,298.92
  6. Step 6: Final answer
    x = 561,420.53

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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.