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Finding the Fourth Proportional to 624,689,170.40, 936,396,026.40 and 365,771,115.20

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Solution

The fourth proportional to 624,689,170.40, 936,396,026.40 and 365,771,115.20 is: 548,283,266.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,689,170.40 : 936,396,026.40 = 365,771,115.20 : x
  2. Step 2: Convert to fraction form
    624,689,170.40/936,396,026.40 = 365,771,115.20/x
  3. Step 3: Cross multiply
    624,689,170.40x = 936,396,026.40 × 365,771,115.20
  4. Step 4: Simplify right side
    624,689,170.40x = 342,506,618,845,176,640
  5. Step 5: Solve for x
    x = 342,506,618,845,176,640/624,689,170.40
  6. Step 6: Final answer
    x = 548,283,266.42

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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.