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Finding the Fourth Proportional to 1,298,654.92, 1,947,982.38 and 352,025.63

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Solution

The fourth proportional to 1,298,654.92, 1,947,982.38 and 352,025.63 is: 528,038.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,654.92 : 1,947,982.38 = 352,025.63 : x
  2. Step 2: Convert to fraction form
    1,298,654.92/1,947,982.38 = 352,025.63/x
  3. Step 3: Cross multiply
    1,298,654.92x = 1,947,982.38 × 352,025.63
  4. Step 4: Simplify right side
    1,298,654.92x = 685,739,724,548.40
  5. Step 5: Solve for x
    x = 685,739,724,548.40/1,298,654.92
  6. Step 6: Final answer
    x = 528,038.45

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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.