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Finding the Fourth Proportional to 619,298.69, 928,939.73 and 170,019.02

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Solution

The fourth proportional to 619,298.69, 928,939.73 and 170,019.02 is: 255,026.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,298.69 : 928,939.73 = 170,019.02 : x
  2. Step 2: Convert to fraction form
    619,298.69/928,939.73 = 170,019.02/x
  3. Step 3: Cross multiply
    619,298.69x = 928,939.73 × 170,019.02
  4. Step 4: Simplify right side
    619,298.69x = 157,937,424,005.92
  5. Step 5: Solve for x
    x = 157,937,424,005.92/619,298.69
  6. Step 6: Final answer
    x = 255,026.25

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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.