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Finding the Fourth Proportional to 525,156.60, 788,123.70 and 347,604.60

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Solution

The fourth proportional to 525,156.60, 788,123.70 and 347,604.60 is: 521,664.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,156.60 : 788,123.70 = 347,604.60 : x
  2. Step 2: Convert to fraction form
    525,156.60/788,123.70 = 347,604.60/x
  3. Step 3: Cross multiply
    525,156.60x = 788,123.70 × 347,604.60
  4. Step 4: Simplify right side
    525,156.60x = 273,955,423,489.02
  5. Step 5: Solve for x
    x = 273,955,423,489.02/525,156.60
  6. Step 6: Final answer
    x = 521,664.25

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1.5x scale

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.