Home / 1,668,681.40-2,503,678.20-657,631.30

Finding the Fourth Proportional to 1,668,681.40, 2,503,678.20 and 657,631.30

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Solution

The fourth proportional to 1,668,681.40, 2,503,678.20 and 657,631.30 is: 986,705.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668,681.40 : 2,503,678.20 = 657,631.30 : x
  2. Step 2: Convert to fraction form
    1,668,681.40/2,503,678.20 = 657,631.30/x
  3. Step 3: Cross multiply
    1,668,681.40x = 2,503,678.20 × 657,631.30
  4. Step 4: Simplify right side
    1,668,681.40x = 1,646,497,149,447.66
  5. Step 5: Solve for x
    x = 1,646,497,149,447.66/1,668,681.40
  6. Step 6: Final answer
    x = 986,705.52

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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.