Home / 689,609.10-1,034,413.59-190,973.10

Finding the Fourth Proportional to 689,609.10, 1,034,413.59 and 190,973.10

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Solution

The fourth proportional to 689,609.10, 1,034,413.59 and 190,973.10 is: 286,459.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,609.10 : 1,034,413.59 = 190,973.10 : x
  2. Step 2: Convert to fraction form
    689,609.10/1,034,413.59 = 190,973.10/x
  3. Step 3: Cross multiply
    689,609.10x = 1,034,413.59 × 190,973.10
  4. Step 4: Simplify right side
    689,609.10x = 197,545,169,964.43
  5. Step 5: Solve for x
    x = 197,545,169,964.43/689,609.10
  6. Step 6: Final answer
    x = 286,459.63

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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.