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Finding the Fourth Proportional to 539,101.20, 808,651.80 and 528,603.60

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Solution

The fourth proportional to 539,101.20, 808,651.80 and 528,603.60 is: 792,905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,101.20 : 808,651.80 = 528,603.60 : x
  2. Step 2: Convert to fraction form
    539,101.20/808,651.80 = 528,603.60/x
  3. Step 3: Cross multiply
    539,101.20x = 808,651.80 × 528,603.60
  4. Step 4: Simplify right side
    539,101.20x = 427,456,252,626.48
  5. Step 5: Solve for x
    x = 427,456,252,626.48/539,101.20
  6. Step 6: Final answer
    x = 792,905.40

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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.