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Finding the Fourth Proportional to 554,203.71, 764,800.69 and 299,554.90

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Solution

The fourth proportional to 554,203.71, 764,800.69 and 299,554.90 is: 413,385.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,203.71 : 764,800.69 = 299,554.90 : x
  2. Step 2: Convert to fraction form
    554,203.71/764,800.69 = 299,554.90/x
  3. Step 3: Cross multiply
    554,203.71x = 764,800.69 × 299,554.90
  4. Step 4: Simplify right side
    554,203.71x = 229,099,791,551.99
  5. Step 5: Solve for x
    x = 229,099,791,551.99/554,203.71
  6. Step 6: Final answer
    x = 413,385.52

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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.