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Finding the Fourth Proportional to 553,592.90, 764,014.74 and 338,874.86

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Solution

The fourth proportional to 553,592.90, 764,014.74 and 338,874.86 is: 467,681.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,592.90 : 764,014.74 = 338,874.86 : x
  2. Step 2: Convert to fraction form
    553,592.90/764,014.74 = 338,874.86/x
  3. Step 3: Cross multiply
    553,592.90x = 764,014.74 × 338,874.86
  4. Step 4: Simplify right side
    553,592.90x = 258,905,388,055.44
  5. Step 5: Solve for x
    x = 258,905,388,055.44/553,592.90
  6. Step 6: Final answer
    x = 467,681.92

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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.