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Finding the Fourth Proportional to 865,881.89, 1,194,953.92 and 483,908.67

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Solution

The fourth proportional to 865,881.89, 1,194,953.92 and 483,908.67 is: 667,814.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,881.89 : 1,194,953.92 = 483,908.67 : x
  2. Step 2: Convert to fraction form
    865,881.89/1,194,953.92 = 483,908.67/x
  3. Step 3: Cross multiply
    865,881.89x = 1,194,953.92 × 483,908.67
  4. Step 4: Simplify right side
    865,881.89x = 578,248,560,928.72
  5. Step 5: Solve for x
    x = 578,248,560,928.72/865,881.89
  6. Step 6: Final answer
    x = 667,814.59

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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.