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Finding the Fourth Proportional to 265,761,333.60, 398,642,000.40 and 265,761,333.60

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Solution

The fourth proportional to 265,761,333.60, 398,642,000.40 and 265,761,333.60 is: 398,642,000.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,761,333.60 : 398,642,000.40 = 265,761,333.60 : x
  2. Step 2: Convert to fraction form
    265,761,333.60/398,642,000.40 = 265,761,333.60/x
  3. Step 3: Cross multiply
    265,761,333.60x = 398,642,000.40 × 265,761,333.60
  4. Step 4: Simplify right side
    265,761,333.60x = 105,943,629,655,275,728
  5. Step 5: Solve for x
    x = 105,943,629,655,275,728/265,761,333.60
  6. Step 6: Final answer
    x = 398,642,000.40

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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.