Home / 689,763.10-1,034,645.04-191,127.10

Finding the Fourth Proportional to 689,763.10, 1,034,645.04 and 191,127.10

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Solution

The fourth proportional to 689,763.10, 1,034,645.04 and 191,127.10 is: 286,690.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,763.10 : 1,034,645.04 = 191,127.10 : x
  2. Step 2: Convert to fraction form
    689,763.10/1,034,645.04 = 191,127.10/x
  3. Step 3: Cross multiply
    689,763.10x = 1,034,645.04 × 191,127.10
  4. Step 4: Simplify right side
    689,763.10x = 197,748,706,024.58
  5. Step 5: Solve for x
    x = 197,748,706,024.58/689,763.10
  6. Step 6: Final answer
    x = 286,690.76

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Double scale
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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.