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Finding the Fourth Proportional to 768,234.32, 1,060,617.48 and 553,927.76

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Solution

The fourth proportional to 768,234.32, 1,060,617.48 and 553,927.76 is: 764,747.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,234.32 : 1,060,617.48 = 553,927.76 : x
  2. Step 2: Convert to fraction form
    768,234.32/1,060,617.48 = 553,927.76/x
  3. Step 3: Cross multiply
    768,234.32x = 1,060,617.48 × 553,927.76
  4. Step 4: Simplify right side
    768,234.32x = 587,505,464,913.25
  5. Step 5: Solve for x
    x = 587,505,464,913.25/768,234.32
  6. Step 6: Final answer
    x = 764,747.75

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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.