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Finding the Fourth Proportional to 898,777,007.10, 1,348,165,510.65 and 626,455,266.30

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Solution

The fourth proportional to 898,777,007.10, 1,348,165,510.65 and 626,455,266.30 is: 939,682,899.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,777,007.10 : 1,348,165,510.65 = 626,455,266.30 : x
  2. Step 2: Convert to fraction form
    898,777,007.10/1,348,165,510.65 = 626,455,266.30/x
  3. Step 3: Cross multiply
    898,777,007.10x = 1,348,165,510.65 × 626,455,266.30
  4. Step 4: Simplify right side
    898,777,007.10x = 844,565,383,990,721,280
  5. Step 5: Solve for x
    x = 844,565,383,990,721,280/898,777,007.10
  6. Step 6: Final answer
    x = 939,682,899.45

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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.