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Finding the Fourth Proportional to 617,059.20, 925,675.20 and 262,070.40

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Solution

The fourth proportional to 617,059.20, 925,675.20 and 262,070.40 is: 393,142.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,059.20 : 925,675.20 = 262,070.40 : x
  2. Step 2: Convert to fraction form
    617,059.20/925,675.20 = 262,070.40/x
  3. Step 3: Cross multiply
    617,059.20x = 925,675.20 × 262,070.40
  4. Step 4: Simplify right side
    617,059.20x = 242,592,069,934.08
  5. Step 5: Solve for x
    x = 242,592,069,934.08/617,059.20
  6. Step 6: Final answer
    x = 393,142.29

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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.