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Finding the Fourth Proportional to 405,066.80, 607,600.20 and 195,114.80

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Solution

The fourth proportional to 405,066.80, 607,600.20 and 195,114.80 is: 292,672.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,066.80 : 607,600.20 = 195,114.80 : x
  2. Step 2: Convert to fraction form
    405,066.80/607,600.20 = 195,114.80/x
  3. Step 3: Cross multiply
    405,066.80x = 607,600.20 × 195,114.80
  4. Step 4: Simplify right side
    405,066.80x = 118,551,791,502.96
  5. Step 5: Solve for x
    x = 118,551,791,502.96/405,066.80
  6. Step 6: Final answer
    x = 292,672.20

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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.