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Finding the Fourth Proportional to 1,209,723,311.10, 1,814,584,966.65 and 1,209,723,311.10

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Solution

The fourth proportional to 1,209,723,311.10, 1,814,584,966.65 and 1,209,723,311.10 is: 1,814,584,966.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,723,311.10 : 1,814,584,966.65 = 1,209,723,311.10 : x
  2. Step 2: Convert to fraction form
    1,209,723,311.10/1,814,584,966.65 = 1,209,723,311.10/x
  3. Step 3: Cross multiply
    1,209,723,311.10x = 1,814,584,966.65 × 1,209,723,311.10
  4. Step 4: Simplify right side
    1,209,723,311.10x = 2,195,145,734,128,121,088
  5. Step 5: Solve for x
    x = 2,195,145,734,128,121,088/1,209,723,311.10
  6. Step 6: Final answer
    x = 1,814,584,966.65

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Double scale
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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.