Home / 646,985.10-970,623.45-197,726.70

Finding the Fourth Proportional to 646,985.10, 970,623.45 and 197,726.70

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Solution

The fourth proportional to 646,985.10, 970,623.45 and 197,726.70 is: 296,634.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,985.10 : 970,623.45 = 197,726.70 : x
  2. Step 2: Convert to fraction form
    646,985.10/970,623.45 = 197,726.70/x
  3. Step 3: Cross multiply
    646,985.10x = 970,623.45 × 197,726.70
  4. Step 4: Simplify right side
    646,985.10x = 191,918,171,711.12
  5. Step 5: Solve for x
    x = 191,918,171,711.12/646,985.10
  6. Step 6: Final answer
    x = 296,634.61

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1.5x scale

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.