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Finding the Fourth Proportional to 355,876.80, 533,354.40 and 314,404.80

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Solution

The fourth proportional to 355,876.80, 533,354.40 and 314,404.80 is: 471,200.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,876.80 : 533,354.40 = 314,404.80 : x
  2. Step 2: Convert to fraction form
    355,876.80/533,354.40 = 314,404.80/x
  3. Step 3: Cross multiply
    355,876.80x = 533,354.40 × 314,404.80
  4. Step 4: Simplify right side
    355,876.80x = 167,689,183,461.12
  5. Step 5: Solve for x
    x = 167,689,183,461.12/355,876.80
  6. Step 6: Final answer
    x = 471,200.10

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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.