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Finding the Fourth Proportional to 265,770,219.30, 398,655,328.95 and 265,770,219.30

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Solution

The fourth proportional to 265,770,219.30, 398,655,328.95 and 265,770,219.30 is: 398,655,328.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,770,219.30 : 398,655,328.95 = 265,770,219.30 : x
  2. Step 2: Convert to fraction form
    265,770,219.30/398,655,328.95 = 265,770,219.30/x
  3. Step 3: Cross multiply
    265,770,219.30x = 398,655,328.95 × 265,770,219.30
  4. Step 4: Simplify right side
    265,770,219.30x = 105,950,714,200,155,136
  5. Step 5: Solve for x
    x = 105,950,714,200,155,136/265,770,219.30
  6. Step 6: Final answer
    x = 398,655,328.95

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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.