Home / 689,706.82-1,034,560.64-191,070.82

Finding the Fourth Proportional to 689,706.82, 1,034,560.64 and 191,070.82

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Solution

The fourth proportional to 689,706.82, 1,034,560.64 and 191,070.82 is: 286,606.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,706.82 : 1,034,560.64 = 191,070.82 : x
  2. Step 2: Convert to fraction form
    689,706.82/1,034,560.64 = 191,070.82/x
  3. Step 3: Cross multiply
    689,706.82x = 1,034,560.64 × 191,070.82
  4. Step 4: Simplify right side
    689,706.82x = 197,674,349,824.53
  5. Step 5: Solve for x
    x = 197,674,349,824.53/689,706.82
  6. Step 6: Final answer
    x = 286,606.34

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Similar ratio
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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.