Home / 1,149,000.71-1,585,900.29-665,487.81

Finding the Fourth Proportional to 1,149,000.71, 1,585,900.29 and 665,487.81

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Solution

The fourth proportional to 1,149,000.71, 1,585,900.29 and 665,487.81 is: 918,534.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,000.71 : 1,585,900.29 = 665,487.81 : x
  2. Step 2: Convert to fraction form
    1,149,000.71/1,585,900.29 = 665,487.81/x
  3. Step 3: Cross multiply
    1,149,000.71x = 1,585,900.29 × 665,487.81
  4. Step 4: Simplify right side
    1,149,000.71x = 1,055,397,314,835.22
  5. Step 5: Solve for x
    x = 1,055,397,314,835.22/1,149,000.71
  6. Step 6: Final answer
    x = 918,534.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.