Home / 689,899.80-1,034,849.70-606,955.80

Finding the Fourth Proportional to 689,899.80, 1,034,849.70 and 606,955.80

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Solution

The fourth proportional to 689,899.80, 1,034,849.70 and 606,955.80 is: 910,433.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,899.80 : 1,034,849.70 = 606,955.80 : x
  2. Step 2: Convert to fraction form
    689,899.80/1,034,849.70 = 606,955.80/x
  3. Step 3: Cross multiply
    689,899.80x = 1,034,849.70 × 606,955.80
  4. Step 4: Simplify right side
    689,899.80x = 628,108,027,543.26
  5. Step 5: Solve for x
    x = 628,108,027,543.26/689,899.80
  6. Step 6: Final answer
    x = 910,433.70

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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.