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Finding the Fourth Proportional to 1,404,856.78, 1,938,702.54 and 760,277.14

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Solution

The fourth proportional to 1,404,856.78, 1,938,702.54 and 760,277.14 is: 1,049,182.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404,856.78 : 1,938,702.54 = 760,277.14 : x
  2. Step 2: Convert to fraction form
    1,404,856.78/1,938,702.54 = 760,277.14/x
  3. Step 3: Cross multiply
    1,404,856.78x = 1,938,702.54 × 760,277.14
  4. Step 4: Simplify right side
    1,404,856.78x = 1,473,951,222,421.94
  5. Step 5: Solve for x
    x = 1,473,951,222,421.94/1,404,856.78
  6. Step 6: Final answer
    x = 1,049,182.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.