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Finding the Fourth Proportional to 594,854.40, 820,885.28 and 340,190.40

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Solution

The fourth proportional to 594,854.40, 820,885.28 and 340,190.40 is: 469,454.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,854.40 : 820,885.28 = 340,190.40 : x
  2. Step 2: Convert to fraction form
    594,854.40/820,885.28 = 340,190.40/x
  3. Step 3: Cross multiply
    594,854.40x = 820,885.28 × 340,190.40
  4. Step 4: Simplify right side
    594,854.40x = 279,257,291,757.31
  5. Step 5: Solve for x
    x = 279,257,291,757.31/594,854.40
  6. Step 6: Final answer
    x = 469,454.86

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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.