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Finding the Fourth Proportional to 916,698.23, 1,376,397.16 and 512,682

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Solution

The fourth proportional to 916,698.23, 1,376,397.16 and 512,682 is: 769,777.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,698.23 : 1,376,397.16 = 512,682 : x
  2. Step 2: Convert to fraction form
    916,698.23/1,376,397.16 = 512,682/x
  3. Step 3: Cross multiply
    916,698.23x = 1,376,397.16 × 512,682
  4. Step 4: Simplify right side
    916,698.23x = 705,654,047,501.42
  5. Step 5: Solve for x
    x = 705,654,047,501.42/916,698.23
  6. Step 6: Final answer
    x = 769,777.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.