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Finding the Fourth Proportional to 298,936,176.40, 448,404,264.60 and 238,470,000.40

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Solution

The fourth proportional to 298,936,176.40, 448,404,264.60 and 238,470,000.40 is: 357,705,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,936,176.40 : 448,404,264.60 = 238,470,000.40 : x
  2. Step 2: Convert to fraction form
    298,936,176.40/448,404,264.60 = 238,470,000.40/x
  3. Step 3: Cross multiply
    298,936,176.40x = 448,404,264.60 × 238,470,000.40
  4. Step 4: Simplify right side
    298,936,176.40x = 106,930,965,158,523,712
  5. Step 5: Solve for x
    x = 106,930,965,158,523,712/298,936,176.40
  6. Step 6: Final answer
    x = 357,705,000.60

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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.