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Finding the Fourth Proportional to 898,679,435.20, 1,259,849,902.40 and 898,679,435.20

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Solution

The fourth proportional to 898,679,435.20, 1,259,849,902.40 and 898,679,435.20 is: 1,259,849,902.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,679,435.20 : 1,259,849,902.40 = 898,679,435.20 : x
  2. Step 2: Convert to fraction form
    898,679,435.20/1,259,849,902.40 = 898,679,435.20/x
  3. Step 3: Cross multiply
    898,679,435.20x = 1,259,849,902.40 × 898,679,435.20
  4. Step 4: Simplify right side
    898,679,435.20x = 1,132,201,198,725,607,296
  5. Step 5: Solve for x
    x = 1,132,201,198,725,607,296/898,679,435.20
  6. Step 6: Final answer
    x = 1,259,849,902.40

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1.5x scale

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.