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Finding the Fourth Proportional to 865,776.96, 1,194,770.28 and 483,803.77

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Solution

The fourth proportional to 865,776.96, 1,194,770.28 and 483,803.77 is: 667,648.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,776.96 : 1,194,770.28 = 483,803.77 : x
  2. Step 2: Convert to fraction form
    865,776.96/1,194,770.28 = 483,803.77/x
  3. Step 3: Cross multiply
    865,776.96x = 1,194,770.28 × 483,803.77
  4. Step 4: Simplify right side
    865,776.96x = 578,034,365,747.96
  5. Step 5: Solve for x
    x = 578,034,365,747.96/865,776.96
  6. Step 6: Final answer
    x = 667,648.13

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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.