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Finding the Fourth Proportional to 317,228.40, 437,794.56 and 174,009.06

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Solution

The fourth proportional to 317,228.40, 437,794.56 and 174,009.06 is: 240,143.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,228.40 : 437,794.56 = 174,009.06 : x
  2. Step 2: Convert to fraction form
    317,228.40/437,794.56 = 174,009.06/x
  3. Step 3: Cross multiply
    317,228.40x = 437,794.56 × 174,009.06
  4. Step 4: Simplify right side
    317,228.40x = 76,180,219,858.71
  5. Step 5: Solve for x
    x = 76,180,219,858.71/317,228.40
  6. Step 6: Final answer
    x = 240,143.13

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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.