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Finding the Fourth Proportional to 1,232,495.10, 1,848,742.65 and 826,587.90

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Solution

The fourth proportional to 1,232,495.10, 1,848,742.65 and 826,587.90 is: 1,239,881.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,232,495.10 : 1,848,742.65 = 826,587.90 : x
  2. Step 2: Convert to fraction form
    1,232,495.10/1,848,742.65 = 826,587.90/x
  3. Step 3: Cross multiply
    1,232,495.10x = 1,848,742.65 × 826,587.90
  4. Step 4: Simplify right side
    1,232,495.10x = 1,528,148,304,703.94
  5. Step 5: Solve for x
    x = 1,528,148,304,703.94/1,232,495.10
  6. Step 6: Final answer
    x = 1,239,881.85

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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.