Home / 1,209,415.01-1,668,971.12-658,111.91

Finding the Fourth Proportional to 1,209,415.01, 1,668,971.12 and 658,111.91

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Solution

The fourth proportional to 1,209,415.01, 1,668,971.12 and 658,111.91 is: 908,182.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,415.01 : 1,668,971.12 = 658,111.91 : x
  2. Step 2: Convert to fraction form
    1,209,415.01/1,668,971.12 = 658,111.91/x
  3. Step 3: Cross multiply
    1,209,415.01x = 1,668,971.12 × 658,111.91
  4. Step 4: Simplify right side
    1,209,415.01x = 1,098,369,777,335.75
  5. Step 5: Solve for x
    x = 1,098,369,777,335.75/1,209,415.01
  6. Step 6: Final answer
    x = 908,182.69

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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.