Home / 1,821,920.90-2,732,881.35-639,968.90

Finding the Fourth Proportional to 1,821,920.90, 2,732,881.35 and 639,968.90

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Solution

The fourth proportional to 1,821,920.90, 2,732,881.35 and 639,968.90 is: 959,953.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,920.90 : 2,732,881.35 = 639,968.90 : x
  2. Step 2: Convert to fraction form
    1,821,920.90/2,732,881.35 = 639,968.90/x
  3. Step 3: Cross multiply
    1,821,920.90x = 2,732,881.35 × 639,968.90
  4. Step 4: Simplify right side
    1,821,920.90x = 1,748,959,071,390.02
  5. Step 5: Solve for x
    x = 1,748,959,071,390.02/1,821,920.90
  6. Step 6: Final answer
    x = 959,953.35

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Similar ratio
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1.5x scale

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.