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Finding the Fourth Proportional to 570,783.62, 787,687.19 and 344,385.38

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Solution

The fourth proportional to 570,783.62, 787,687.19 and 344,385.38 is: 475,255.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,783.62 : 787,687.19 = 344,385.38 : x
  2. Step 2: Convert to fraction form
    570,783.62/787,687.19 = 344,385.38/x
  3. Step 3: Cross multiply
    570,783.62x = 787,687.19 × 344,385.38
  4. Step 4: Simplify right side
    570,783.62x = 271,267,946,588.92
  5. Step 5: Solve for x
    x = 271,267,946,588.92/570,783.62
  6. Step 6: Final answer
    x = 475,255.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.