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Finding the Fourth Proportional to 412,636.77, 619,001.40 and 370,256.35

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Solution

The fourth proportional to 412,636.77, 619,001.40 and 370,256.35 is: 555,426.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,636.77 : 619,001.40 = 370,256.35 : x
  2. Step 2: Convert to fraction form
    412,636.77/619,001.40 = 370,256.35/x
  3. Step 3: Cross multiply
    412,636.77x = 619,001.40 × 370,256.35
  4. Step 4: Simplify right side
    412,636.77x = 229,189,199,008.89
  5. Step 5: Solve for x
    x = 229,189,199,008.89/412,636.77
  6. Step 6: Final answer
    x = 555,426.02

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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.