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Finding the Fourth Proportional to 638,595.84, 881,179.20 and 366,675.60

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Solution

The fourth proportional to 638,595.84, 881,179.20 and 366,675.60 is: 505,964.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,595.84 : 881,179.20 = 366,675.60 : x
  2. Step 2: Convert to fraction form
    638,595.84/881,179.20 = 366,675.60/x
  3. Step 3: Cross multiply
    638,595.84x = 881,179.20 × 366,675.60
  4. Step 4: Simplify right side
    638,595.84x = 323,106,911,867.52
  5. Step 5: Solve for x
    x = 323,106,911,867.52/638,595.84
  6. Step 6: Final answer
    x = 505,964.64

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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.