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Finding the Fourth Proportional to 460,460.55, 690,764.63 and 194,260.28

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Solution

The fourth proportional to 460,460.55, 690,764.63 and 194,260.28 is: 291,421.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,460.55 : 690,764.63 = 194,260.28 : x
  2. Step 2: Convert to fraction form
    460,460.55/690,764.63 = 194,260.28/x
  3. Step 3: Cross multiply
    460,460.55x = 690,764.63 × 194,260.28
  4. Step 4: Simplify right side
    460,460.55x = 134,188,127,651.84
  5. Step 5: Solve for x
    x = 134,188,127,651.84/460,460.55
  6. Step 6: Final answer
    x = 291,421.55

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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.