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Finding the Fourth Proportional to 510,763.64, 766,189.52 and 131,681.15

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Solution

The fourth proportional to 510,763.64, 766,189.52 and 131,681.15 is: 197,533.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,763.64 : 766,189.52 = 131,681.15 : x
  2. Step 2: Convert to fraction form
    510,763.64/766,189.52 = 131,681.15/x
  3. Step 3: Cross multiply
    510,763.64x = 766,189.52 × 131,681.15
  4. Step 4: Simplify right side
    510,763.64x = 100,892,716,453.14
  5. Step 5: Solve for x
    x = 100,892,716,453.14/510,763.64
  6. Step 6: Final answer
    x = 197,533.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.