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Finding the Fourth Proportional to 613,966,510.15, 920,949,765.23 and 613,966,510.15

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Solution

The fourth proportional to 613,966,510.15, 920,949,765.23 and 613,966,510.15 is: 920,949,765.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,966,510.15 : 920,949,765.23 = 613,966,510.15 : x
  2. Step 2: Convert to fraction form
    613,966,510.15/920,949,765.23 = 613,966,510.15/x
  3. Step 3: Cross multiply
    613,966,510.15x = 920,949,765.23 × 613,966,510.15
  4. Step 4: Simplify right side
    613,966,510.15x = 565,432,313,378,655,104
  5. Step 5: Solve for x
    x = 565,432,313,378,655,104/613,966,510.15
  6. Step 6: Final answer
    x = 920,949,765.23

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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.