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Finding the Fourth Proportional to 533,434.60, 736,209.38 and 307,089.64

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Solution

The fourth proportional to 533,434.60, 736,209.38 and 307,089.64 is: 423,823.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,434.60 : 736,209.38 = 307,089.64 : x
  2. Step 2: Convert to fraction form
    533,434.60/736,209.38 = 307,089.64/x
  3. Step 3: Cross multiply
    533,434.60x = 736,209.38 × 307,089.64
  4. Step 4: Simplify right side
    533,434.60x = 226,082,273,468.82
  5. Step 5: Solve for x
    x = 226,082,273,468.82/533,434.60
  6. Step 6: Final answer
    x = 423,823.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.