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Finding the Fourth Proportional to 1,087,344,518.90, 1,631,016,778.35 and 1,087,344,518.90

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Solution

The fourth proportional to 1,087,344,518.90, 1,631,016,778.35 and 1,087,344,518.90 is: 1,631,016,778.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,344,518.90 : 1,631,016,778.35 = 1,087,344,518.90 : x
  2. Step 2: Convert to fraction form
    1,087,344,518.90/1,631,016,778.35 = 1,087,344,518.90/x
  3. Step 3: Cross multiply
    1,087,344,518.90x = 1,631,016,778.35 × 1,087,344,518.90
  4. Step 4: Simplify right side
    1,087,344,518.90x = 1,773,477,154,172,808,704
  5. Step 5: Solve for x
    x = 1,773,477,154,172,808,704/1,087,344,518.90
  6. Step 6: Final answer
    x = 1,631,016,778.35

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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.