Home / 1,287,030.81-1,776,102.74-714,069.62

Finding the Fourth Proportional to 1,287,030.81, 1,776,102.74 and 714,069.62

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Solution

The fourth proportional to 1,287,030.81, 1,776,102.74 and 714,069.62 is: 985,416.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,030.81 : 1,776,102.74 = 714,069.62 : x
  2. Step 2: Convert to fraction form
    1,287,030.81/1,776,102.74 = 714,069.62/x
  3. Step 3: Cross multiply
    1,287,030.81x = 1,776,102.74 × 714,069.62
  4. Step 4: Simplify right side
    1,287,030.81x = 1,268,261,008,197.80
  5. Step 5: Solve for x
    x = 1,268,261,008,197.80/1,287,030.81
  6. Step 6: Final answer
    x = 985,416.20

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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.