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Finding the Fourth Proportional to 1,642,354,792, 2,265,891,607.18 and 937,000,052.80

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Solution

The fourth proportional to 1,642,354,792, 2,265,891,607.18 and 937,000,052.80 is: 1,292,741,718.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642,354,792 : 2,265,891,607.18 = 937,000,052.80 : x
  2. Step 2: Convert to fraction form
    1,642,354,792/2,265,891,607.18 = 937,000,052.80/x
  3. Step 3: Cross multiply
    1,642,354,792x = 2,265,891,607.18 × 937,000,052.80
  4. Step 4: Simplify right side
    1,642,354,792x = 2,123,140,555,566,736,640
  5. Step 5: Solve for x
    x = 2,123,140,555,566,736,640/1,642,354,792
  6. Step 6: Final answer
    x = 1,292,741,718.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.