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Finding the Fourth Proportional to 1,293,032.22, 1,936,558.88 and 1,248,191.88

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Solution

The fourth proportional to 1,293,032.22, 1,936,558.88 and 1,248,191.88 is: 1,869,402.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,032.22 : 1,936,558.88 = 1,248,191.88 : x
  2. Step 2: Convert to fraction form
    1,293,032.22/1,936,558.88 = 1,248,191.88/x
  3. Step 3: Cross multiply
    1,293,032.22x = 1,936,558.88 × 1,248,191.88
  4. Step 4: Simplify right side
    1,293,032.22x = 2,417,197,069,157.89
  5. Step 5: Solve for x
    x = 2,417,197,069,157.89/1,293,032.22
  6. Step 6: Final answer
    x = 1,869,402.05

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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.