Home / 679,986.30-1,019,979.45-606,503.10

Finding the Fourth Proportional to 679,986.30, 1,019,979.45 and 606,503.10

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Solution

The fourth proportional to 679,986.30, 1,019,979.45 and 606,503.10 is: 909,754.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,986.30 : 1,019,979.45 = 606,503.10 : x
  2. Step 2: Convert to fraction form
    679,986.30/1,019,979.45 = 606,503.10/x
  3. Step 3: Cross multiply
    679,986.30x = 1,019,979.45 × 606,503.10
  4. Step 4: Simplify right side
    679,986.30x = 618,620,698,361.30
  5. Step 5: Solve for x
    x = 618,620,698,361.30/679,986.30
  6. Step 6: Final answer
    x = 909,754.65

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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.