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Finding the Fourth Proportional to 484,479,984.90, 726,719,977.35 and 484,479,984.90

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Solution

The fourth proportional to 484,479,984.90, 726,719,977.35 and 484,479,984.90 is: 726,719,977.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,479,984.90 : 726,719,977.35 = 484,479,984.90 : x
  2. Step 2: Convert to fraction form
    484,479,984.90/726,719,977.35 = 484,479,984.90/x
  3. Step 3: Cross multiply
    484,479,984.90x = 726,719,977.35 × 484,479,984.90
  4. Step 4: Simplify right side
    484,479,984.90x = 352,081,283,653,056,320
  5. Step 5: Solve for x
    x = 352,081,283,653,056,320/484,479,984.90
  6. Step 6: Final answer
    x = 726,719,977.35

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1.5x scale

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.