Home / 1,066,543.80-1,599,815.70-668,412.60

Finding the Fourth Proportional to 1,066,543.80, 1,599,815.70 and 668,412.60

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Solution

The fourth proportional to 1,066,543.80, 1,599,815.70 and 668,412.60 is: 1,002,618.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,066,543.80 : 1,599,815.70 = 668,412.60 : x
  2. Step 2: Convert to fraction form
    1,066,543.80/1,599,815.70 = 668,412.60/x
  3. Step 3: Cross multiply
    1,066,543.80x = 1,599,815.70 × 668,412.60
  4. Step 4: Simplify right side
    1,066,543.80x = 1,069,336,971,557.82
  5. Step 5: Solve for x
    x = 1,069,336,971,557.82/1,066,543.80
  6. Step 6: Final answer
    x = 1,002,618.90

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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.