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Finding the Fourth Proportional to 584,011.72, 805,955.46 and 338,977.60

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Solution

The fourth proportional to 584,011.72, 805,955.46 and 338,977.60 is: 467,800.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,011.72 : 805,955.46 = 338,977.60 : x
  2. Step 2: Convert to fraction form
    584,011.72/805,955.46 = 338,977.60/x
  3. Step 3: Cross multiply
    584,011.72x = 805,955.46 × 338,977.60
  4. Step 4: Simplify right side
    584,011.72x = 273,200,847,537.70
  5. Step 5: Solve for x
    x = 273,200,847,537.70/584,011.72
  6. Step 6: Final answer
    x = 467,800.28

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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.