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Finding the Fourth Proportional to 355,644.65, 533,476.69 and 118,978.85

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Solution

The fourth proportional to 355,644.65, 533,476.69 and 118,978.85 is: 178,471.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,644.65 : 533,476.69 = 118,978.85 : x
  2. Step 2: Convert to fraction form
    355,644.65/533,476.69 = 118,978.85/x
  3. Step 3: Cross multiply
    355,644.65x = 533,476.69 × 118,978.85
  4. Step 4: Simplify right side
    355,644.65x = 63,472,440,113.18
  5. Step 5: Solve for x
    x = 63,472,440,113.18/355,644.65
  6. Step 6: Final answer
    x = 178,471.52

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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.