Home / 689,572.98-1,034,359.65-190,936.98

Finding the Fourth Proportional to 689,572.98, 1,034,359.65 and 190,936.98

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Solution

The fourth proportional to 689,572.98, 1,034,359.65 and 190,936.98 is: 286,405.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,572.98 : 1,034,359.65 = 190,936.98 : x
  2. Step 2: Convert to fraction form
    689,572.98/1,034,359.65 = 190,936.98/x
  3. Step 3: Cross multiply
    689,572.98x = 1,034,359.65 × 190,936.98
  4. Step 4: Simplify right side
    689,572.98x = 197,497,507,804.86
  5. Step 5: Solve for x
    x = 197,497,507,804.86/689,572.98
  6. Step 6: Final answer
    x = 286,405.52

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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.