Home / 670,105.80-923,995.38-627,590.52

Finding the Fourth Proportional to 670,105.80, 923,995.38 and 627,590.52

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Solution

The fourth proportional to 670,105.80, 923,995.38 and 627,590.52 is: 865,371.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,105.80 : 923,995.38 = 627,590.52 : x
  2. Step 2: Convert to fraction form
    670,105.80/923,995.38 = 627,590.52/x
  3. Step 3: Cross multiply
    670,105.80x = 923,995.38 × 627,590.52
  4. Step 4: Simplify right side
    670,105.80x = 579,890,741,011.80
  5. Step 5: Solve for x
    x = 579,890,741,011.80/670,105.80
  6. Step 6: Final answer
    x = 865,371.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.