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Finding the Fourth Proportional to 355,877.80, 533,355.90 and 314,405.80

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Solution

The fourth proportional to 355,877.80, 533,355.90 and 314,405.80 is: 471,201.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,877.80 : 533,355.90 = 314,405.80 : x
  2. Step 2: Convert to fraction form
    355,877.80/533,355.90 = 314,405.80/x
  3. Step 3: Cross multiply
    355,877.80x = 533,355.90 × 314,405.80
  4. Step 4: Simplify right side
    355,877.80x = 167,690,188,424.22
  5. Step 5: Solve for x
    x = 167,690,188,424.22/355,877.80
  6. Step 6: Final answer
    x = 471,201.60

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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.