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Finding the Fourth Proportional to 403,044.80, 604,567.20 and 284,946.80

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Solution

The fourth proportional to 403,044.80, 604,567.20 and 284,946.80 is: 427,420.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,044.80 : 604,567.20 = 284,946.80 : x
  2. Step 2: Convert to fraction form
    403,044.80/604,567.20 = 284,946.80/x
  3. Step 3: Cross multiply
    403,044.80x = 604,567.20 × 284,946.80
  4. Step 4: Simplify right side
    403,044.80x = 172,269,489,024.96
  5. Step 5: Solve for x
    x = 172,269,489,024.96/403,044.80
  6. Step 6: Final answer
    x = 427,420.20

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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.