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Finding the Fourth Proportional to 313,143,145.60, 469,714,718.40 and 313,143,145.60

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Solution

The fourth proportional to 313,143,145.60, 469,714,718.40 and 313,143,145.60 is: 469,714,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,143,145.60 : 469,714,718.40 = 313,143,145.60 : x
  2. Step 2: Convert to fraction form
    313,143,145.60/469,714,718.40 = 313,143,145.60/x
  3. Step 3: Cross multiply
    313,143,145.60x = 469,714,718.40 × 313,143,145.60
  4. Step 4: Simplify right side
    313,143,145.60x = 147,087,944,454,394,208
  5. Step 5: Solve for x
    x = 147,087,944,454,394,208/313,143,145.60
  6. Step 6: Final answer
    x = 469,714,718.40

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Double scale
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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.