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Finding the Fourth Proportional to 616,466.80, 924,700.20 and 320,940.40

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Solution

The fourth proportional to 616,466.80, 924,700.20 and 320,940.40 is: 481,410.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,466.80 : 924,700.20 = 320,940.40 : x
  2. Step 2: Convert to fraction form
    616,466.80/924,700.20 = 320,940.40/x
  3. Step 3: Cross multiply
    616,466.80x = 924,700.20 × 320,940.40
  4. Step 4: Simplify right side
    616,466.80x = 296,773,652,068.08
  5. Step 5: Solve for x
    x = 296,773,652,068.08/616,466.80
  6. Step 6: Final answer
    x = 481,410.60

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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.