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Finding the Fourth Proportional to 529,580.80, 794,390.40 and 155,641.60

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Solution

The fourth proportional to 529,580.80, 794,390.40 and 155,641.60 is: 233,468.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,580.80 : 794,390.40 = 155,641.60 : x
  2. Step 2: Convert to fraction form
    529,580.80/794,390.40 = 155,641.60/x
  3. Step 3: Cross multiply
    529,580.80x = 794,390.40 × 155,641.60
  4. Step 4: Simplify right side
    529,580.80x = 123,640,192,880.64
  5. Step 5: Solve for x
    x = 123,640,192,880.64/529,580.80
  6. Step 6: Final answer
    x = 233,468.04

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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.