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Finding the Fourth Proportional to 1,091,869,892.90, 1,637,804,839.35 and 898,000,216.10

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Solution

The fourth proportional to 1,091,869,892.90, 1,637,804,839.35 and 898,000,216.10 is: 1,347,000,324.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,869,892.90 : 1,637,804,839.35 = 898,000,216.10 : x
  2. Step 2: Convert to fraction form
    1,091,869,892.90/1,637,804,839.35 = 898,000,216.10/x
  3. Step 3: Cross multiply
    1,091,869,892.90x = 1,637,804,839.35 × 898,000,216.10
  4. Step 4: Simplify right side
    1,091,869,892.90x = 1,470,749,099,665,925,632
  5. Step 5: Solve for x
    x = 1,470,749,099,665,925,632/1,091,869,892.90
  6. Step 6: Final answer
    x = 1,347,000,324.15

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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.