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Finding the Fourth Proportional to 584,179.76, 805,437.60 and 487,522.64

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Solution

The fourth proportional to 584,179.76, 805,437.60 and 487,522.64 is: 672,171.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,179.76 : 805,437.60 = 487,522.64 : x
  2. Step 2: Convert to fraction form
    584,179.76/805,437.60 = 487,522.64/x
  3. Step 3: Cross multiply
    584,179.76x = 805,437.60 × 487,522.64
  4. Step 4: Simplify right side
    584,179.76x = 392,669,065,107.26
  5. Step 5: Solve for x
    x = 392,669,065,107.26/584,179.76
  6. Step 6: Final answer
    x = 672,171.64

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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.