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Finding the Fourth Proportional to 317,887.48, 476,534.70 and 107,378.20

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Solution

The fourth proportional to 317,887.48, 476,534.70 and 107,378.20 is: 160,967.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,887.48 : 476,534.70 = 107,378.20 : x
  2. Step 2: Convert to fraction form
    317,887.48/476,534.70 = 107,378.20/x
  3. Step 3: Cross multiply
    317,887.48x = 476,534.70 × 107,378.20
  4. Step 4: Simplify right side
    317,887.48x = 51,169,438,323.54
  5. Step 5: Solve for x
    x = 51,169,438,323.54/317,887.48
  6. Step 6: Final answer
    x = 160,967.14

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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.