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Finding the Fourth Proportional to 405,099.16, 607,778.54 and 283,646.20

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Solution

The fourth proportional to 405,099.16, 607,778.54 and 283,646.20 is: 425,560.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,099.16 : 607,778.54 = 283,646.20 : x
  2. Step 2: Convert to fraction form
    405,099.16/607,778.54 = 283,646.20/x
  3. Step 3: Cross multiply
    405,099.16x = 607,778.54 × 283,646.20
  4. Step 4: Simplify right side
    405,099.16x = 172,394,073,312.55
  5. Step 5: Solve for x
    x = 172,394,073,312.55/405,099.16
  6. Step 6: Final answer
    x = 425,560.18

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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.