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Finding the Fourth Proportional to 885,346,401.60, 1,328,019,602.40 and 873,253,166.40

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Solution

The fourth proportional to 885,346,401.60, 1,328,019,602.40 and 873,253,166.40 is: 1,309,879,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,346,401.60 : 1,328,019,602.40 = 873,253,166.40 : x
  2. Step 2: Convert to fraction form
    885,346,401.60/1,328,019,602.40 = 873,253,166.40/x
  3. Step 3: Cross multiply
    885,346,401.60x = 1,328,019,602.40 × 873,253,166.40
  4. Step 4: Simplify right side
    885,346,401.60x = 1,159,697,322,837,069,056
  5. Step 5: Solve for x
    x = 1,159,697,322,837,069,056/885,346,401.60
  6. Step 6: Final answer
    x = 1,309,879,749.60

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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.