Home / 1,287,596.40-1,776,966.06-714,636.60

Finding the Fourth Proportional to 1,287,596.40, 1,776,966.06 and 714,636.60

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Solution

The fourth proportional to 1,287,596.40, 1,776,966.06 and 714,636.60 is: 986,244.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,596.40 : 1,776,966.06 = 714,636.60 : x
  2. Step 2: Convert to fraction form
    1,287,596.40/1,776,966.06 = 714,636.60/x
  3. Step 3: Cross multiply
    1,287,596.40x = 1,776,966.06 × 714,636.60
  4. Step 4: Simplify right side
    1,287,596.40x = 1,269,884,983,433.80
  5. Step 5: Solve for x
    x = 1,269,884,983,433.80/1,287,596.40
  6. Step 6: Final answer
    x = 986,244.59

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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.