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Finding the Fourth Proportional to 361,886,542.40, 542,829,813.60 and 361,886,542.40

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Solution

The fourth proportional to 361,886,542.40, 542,829,813.60 and 361,886,542.40 is: 542,829,813.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,886,542.40 : 542,829,813.60 = 361,886,542.40 : x
  2. Step 2: Convert to fraction form
    361,886,542.40/542,829,813.60 = 361,886,542.40/x
  3. Step 3: Cross multiply
    361,886,542.40x = 542,829,813.60 × 361,886,542.40
  4. Step 4: Simplify right side
    361,886,542.40x = 196,442,804,355,340,480
  5. Step 5: Solve for x
    x = 196,442,804,355,340,480/361,886,542.40
  6. Step 6: Final answer
    x = 542,829,813.60

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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.