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Finding the Fourth Proportional to 317,154.80, 437,250.21 and 251,959.94

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Solution

The fourth proportional to 317,154.80, 437,250.21 and 251,959.94 is: 347,368.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,154.80 : 437,250.21 = 251,959.94 : x
  2. Step 2: Convert to fraction form
    317,154.80/437,250.21 = 251,959.94/x
  3. Step 3: Cross multiply
    317,154.80x = 437,250.21 × 251,959.94
  4. Step 4: Simplify right side
    317,154.80x = 110,169,534,490.34
  5. Step 5: Solve for x
    x = 110,169,534,490.34/317,154.80
  6. Step 6: Final answer
    x = 347,368.34

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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.