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Finding the Fourth Proportional to 529,596,874.80, 794,017,398.60 and 238,225,489.20

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Solution

The fourth proportional to 529,596,874.80, 794,017,398.60 and 238,225,489.20 is: 357,168,239.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,596,874.80 : 794,017,398.60 = 238,225,489.20 : x
  2. Step 2: Convert to fraction form
    529,596,874.80/794,017,398.60 = 238,225,489.20/x
  3. Step 3: Cross multiply
    529,596,874.80x = 794,017,398.60 × 238,225,489.20
  4. Step 4: Simplify right side
    529,596,874.80x = 189,155,183,214,796,384
  5. Step 5: Solve for x
    x = 189,155,183,214,796,384/529,596,874.80
  6. Step 6: Final answer
    x = 357,168,239.12

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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.