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Finding the Fourth Proportional to 298,989,000.30, 417,564,233.70 and 298,989,000.30

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Solution

The fourth proportional to 298,989,000.30, 417,564,233.70 and 298,989,000.30 is: 417,564,233.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,989,000.30 : 417,564,233.70 = 298,989,000.30 : x
  2. Step 2: Convert to fraction form
    298,989,000.30/417,564,233.70 = 298,989,000.30/x
  3. Step 3: Cross multiply
    298,989,000.30x = 417,564,233.70 × 298,989,000.30
  4. Step 4: Simplify right side
    298,989,000.30x = 124,847,112,794,998,576
  5. Step 5: Solve for x
    x = 124,847,112,794,998,576/298,989,000.30
  6. Step 6: Final answer
    x = 417,564,233.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.