Home / 472,911.35-709,235.73-131,276.28

Finding the Fourth Proportional to 472,911.35, 709,235.73 and 131,276.28

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Solution

The fourth proportional to 472,911.35, 709,235.73 and 131,276.28 is: 196,877.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,911.35 : 709,235.73 = 131,276.28 : x
  2. Step 2: Convert to fraction form
    472,911.35/709,235.73 = 131,276.28/x
  3. Step 3: Cross multiply
    472,911.35x = 709,235.73 × 131,276.28
  4. Step 4: Simplify right side
    472,911.35x = 93,105,828,277.48
  5. Step 5: Solve for x
    x = 93,105,828,277.48/472,911.35
  6. Step 6: Final answer
    x = 196,877.97

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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.