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Finding the Fourth Proportional to 355,444.80, 533,167.20 and 316,737.60

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Solution

The fourth proportional to 355,444.80, 533,167.20 and 316,737.60 is: 475,106.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,444.80 : 533,167.20 = 316,737.60 : x
  2. Step 2: Convert to fraction form
    355,444.80/533,167.20 = 316,737.60/x
  3. Step 3: Cross multiply
    355,444.80x = 533,167.20 × 316,737.60
  4. Step 4: Simplify right side
    355,444.80x = 168,874,099,326.72
  5. Step 5: Solve for x
    x = 168,874,099,326.72/355,444.80
  6. Step 6: Final answer
    x = 475,106.40

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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.