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Finding the Fourth Proportional to 1,335,848.60, 1,999,836.30 and 887,076.20

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Solution

The fourth proportional to 1,335,848.60, 1,999,836.30 and 887,076.20 is: 1,328,000.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335,848.60 : 1,999,836.30 = 887,076.20 : x
  2. Step 2: Convert to fraction form
    1,335,848.60/1,999,836.30 = 887,076.20/x
  3. Step 3: Cross multiply
    1,335,848.60x = 1,999,836.30 × 887,076.20
  4. Step 4: Simplify right side
    1,335,848.60x = 1,774,007,185,626.06
  5. Step 5: Solve for x
    x = 1,774,007,185,626.06/1,335,848.60
  6. Step 6: Final answer
    x = 1,328,000.18

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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.