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Finding the Fourth Proportional to 945,608,718.60, 1,416,499,890.30 and 654,804,203.40

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Solution

The fourth proportional to 945,608,718.60, 1,416,499,890.30 and 654,804,203.40 is: 980,881,483.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,608,718.60 : 1,416,499,890.30 = 654,804,203.40 : x
  2. Step 2: Convert to fraction form
    945,608,718.60/1,416,499,890.30 = 654,804,203.40/x
  3. Step 3: Cross multiply
    945,608,718.60x = 1,416,499,890.30 × 654,804,203.40
  4. Step 4: Simplify right side
    945,608,718.60x = 927,530,082,284,078,848
  5. Step 5: Solve for x
    x = 927,530,082,284,078,848/945,608,718.60
  6. Step 6: Final answer
    x = 980,881,483.05

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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.