Home / 1,786,126.40-2,679,189.60-456,430.40

Finding the Fourth Proportional to 1,786,126.40, 2,679,189.60 and 456,430.40

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Solution

The fourth proportional to 1,786,126.40, 2,679,189.60 and 456,430.40 is: 684,645.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786,126.40 : 2,679,189.60 = 456,430.40 : x
  2. Step 2: Convert to fraction form
    1,786,126.40/2,679,189.60 = 456,430.40/x
  3. Step 3: Cross multiply
    1,786,126.40x = 2,679,189.60 × 456,430.40
  4. Step 4: Simplify right side
    1,786,126.40x = 1,222,863,580,803.84
  5. Step 5: Solve for x
    x = 1,222,863,580,803.84/1,786,126.40
  6. Step 6: Final answer
    x = 684,645.60

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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.