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Finding the Fourth Proportional to 525,925.20, 788,887.80 and 193,630.80

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Solution

The fourth proportional to 525,925.20, 788,887.80 and 193,630.80 is: 290,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,925.20 : 788,887.80 = 193,630.80 : x
  2. Step 2: Convert to fraction form
    525,925.20/788,887.80 = 193,630.80/x
  3. Step 3: Cross multiply
    525,925.20x = 788,887.80 × 193,630.80
  4. Step 4: Simplify right side
    525,925.20x = 152,752,975,824.24
  5. Step 5: Solve for x
    x = 152,752,975,824.24/525,925.20
  6. Step 6: Final answer
    x = 290,446.20

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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.