Home / 689,876.41-951,214.75-472,190.17

Finding the Fourth Proportional to 689,876.41, 951,214.75 and 472,190.17

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Solution

The fourth proportional to 689,876.41, 951,214.75 and 472,190.17 is: 651,064.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,876.41 : 951,214.75 = 472,190.17 : x
  2. Step 2: Convert to fraction form
    689,876.41/951,214.75 = 472,190.17/x
  3. Step 3: Cross multiply
    689,876.41x = 951,214.75 × 472,190.17
  4. Step 4: Simplify right side
    689,876.41x = 449,154,252,148.06
  5. Step 5: Solve for x
    x = 449,154,252,148.06/689,876.41
  6. Step 6: Final answer
    x = 651,064.81

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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.