Home / 1,668,780.60-2,501,421.30-657,511.80

Finding the Fourth Proportional to 1,668,780.60, 2,501,421.30 and 657,511.80

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Solution

The fourth proportional to 1,668,780.60, 2,501,421.30 and 657,511.80 is: 985,578.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668,780.60 : 2,501,421.30 = 657,511.80 : x
  2. Step 2: Convert to fraction form
    1,668,780.60/2,501,421.30 = 657,511.80/x
  3. Step 3: Cross multiply
    1,668,780.60x = 2,501,421.30 × 657,511.80
  4. Step 4: Simplify right side
    1,668,780.60x = 1,644,714,021,521.34
  5. Step 5: Solve for x
    x = 1,644,714,021,521.34/1,668,780.60
  6. Step 6: Final answer
    x = 985,578.34

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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.