Home / 893,470,490.70-1,340,205,736.05-663,887,978.70

Finding the Fourth Proportional to 893,470,490.70, 1,340,205,736.05 and 663,887,978.70

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Solution

The fourth proportional to 893,470,490.70, 1,340,205,736.05 and 663,887,978.70 is: 995,831,968.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,470,490.70 : 1,340,205,736.05 = 663,887,978.70 : x
  2. Step 2: Convert to fraction form
    893,470,490.70/1,340,205,736.05 = 663,887,978.70/x
  3. Step 3: Cross multiply
    893,470,490.70x = 1,340,205,736.05 × 663,887,978.70
  4. Step 4: Simplify right side
    893,470,490.70x = 889,746,477,148,380,288
  5. Step 5: Solve for x
    x = 889,746,477,148,380,288/893,470,490.70
  6. Step 6: Final answer
    x = 995,831,968.05

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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.