Home / 1,018,191.87-1,527,619.57-485,643.60

Finding the Fourth Proportional to 1,018,191.87, 1,527,619.57 and 485,643.60

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Solution

The fourth proportional to 1,018,191.87, 1,527,619.57 and 485,643.60 is: 728,623.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,018,191.87 : 1,527,619.57 = 485,643.60 : x
  2. Step 2: Convert to fraction form
    1,018,191.87/1,527,619.57 = 485,643.60/x
  3. Step 3: Cross multiply
    1,018,191.87x = 1,527,619.57 × 485,643.60
  4. Step 4: Simplify right side
    1,018,191.87x = 741,878,666,191.14
  5. Step 5: Solve for x
    x = 741,878,666,191.14/1,018,191.87
  6. Step 6: Final answer
    x = 728,623.64

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Double scale
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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.