Home / 1,668,693.40-2,503,696.20-657,643.30

Finding the Fourth Proportional to 1,668,693.40, 2,503,696.20 and 657,643.30

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Solution

The fourth proportional to 1,668,693.40, 2,503,696.20 and 657,643.30 is: 986,723.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668,693.40 : 2,503,696.20 = 657,643.30 : x
  2. Step 2: Convert to fraction form
    1,668,693.40/2,503,696.20 = 657,643.30/x
  3. Step 3: Cross multiply
    1,668,693.40x = 2,503,696.20 × 657,643.30
  4. Step 4: Simplify right side
    1,668,693.40x = 1,646,539,031,165.46
  5. Step 5: Solve for x
    x = 1,646,539,031,165.46/1,668,693.40
  6. Step 6: Final answer
    x = 986,723.52

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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.