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Finding the Fourth Proportional to 354,509.37, 531,320.57 and 177,065.91

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Solution

The fourth proportional to 354,509.37, 531,320.57 and 177,065.91 is: 265,377.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,509.37 : 531,320.57 = 177,065.91 : x
  2. Step 2: Convert to fraction form
    354,509.37/531,320.57 = 177,065.91/x
  3. Step 3: Cross multiply
    354,509.37x = 531,320.57 × 177,065.91
  4. Step 4: Simplify right side
    354,509.37x = 94,078,759,343.44
  5. Step 5: Solve for x
    x = 94,078,759,343.44/354,509.37
  6. Step 6: Final answer
    x = 265,377.36

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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.