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Finding the Fourth Proportional to 824,902.30, 1,236,369.30 and 740,265.40

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Solution

The fourth proportional to 824,902.30, 1,236,369.30 and 740,265.40 is: 1,109,514.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,902.30 : 1,236,369.30 = 740,265.40 : x
  2. Step 2: Convert to fraction form
    824,902.30/1,236,369.30 = 740,265.40/x
  3. Step 3: Cross multiply
    824,902.30x = 1,236,369.30 × 740,265.40
  4. Step 4: Simplify right side
    824,902.30x = 915,241,414,412.22
  5. Step 5: Solve for x
    x = 915,241,414,412.22/824,902.30
  6. Step 6: Final answer
    x = 1,109,514.93

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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.