Home / 653,246,607.80-979,869,911.70-603,362,012.60

Finding the Fourth Proportional to 653,246,607.80, 979,869,911.70 and 603,362,012.60

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Solution

The fourth proportional to 653,246,607.80, 979,869,911.70 and 603,362,012.60 is: 905,043,018.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,246,607.80 : 979,869,911.70 = 603,362,012.60 : x
  2. Step 2: Convert to fraction form
    653,246,607.80/979,869,911.70 = 603,362,012.60/x
  3. Step 3: Cross multiply
    653,246,607.80x = 979,869,911.70 × 603,362,012.60
  4. Step 4: Simplify right side
    653,246,607.80x = 591,216,282,009,496,320
  5. Step 5: Solve for x
    x = 591,216,282,009,496,320/653,246,607.80
  6. Step 6: Final answer
    x = 905,043,018.90

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Double scale
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Similar ratio
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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.