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Finding the Fourth Proportional to 576,699.32, 864,785.46 and 177,200.84

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Solution

The fourth proportional to 576,699.32, 864,785.46 and 177,200.84 is: 265,720.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,699.32 : 864,785.46 = 177,200.84 : x
  2. Step 2: Convert to fraction form
    576,699.32/864,785.46 = 177,200.84/x
  3. Step 3: Cross multiply
    576,699.32x = 864,785.46 × 177,200.84
  4. Step 4: Simplify right side
    576,699.32x = 153,240,709,931.79
  5. Step 5: Solve for x
    x = 153,240,709,931.79/576,699.32
  6. Step 6: Final answer
    x = 265,720.29

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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.