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Finding the Fourth Proportional to 935,356,812.30, 1,311,649,445.70 and 935,356,812.30

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Solution

The fourth proportional to 935,356,812.30, 1,311,649,445.70 and 935,356,812.30 is: 1,311,649,445.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,356,812.30 : 1,311,649,445.70 = 935,356,812.30 : x
  2. Step 2: Convert to fraction form
    935,356,812.30/1,311,649,445.70 = 935,356,812.30/x
  3. Step 3: Cross multiply
    935,356,812.30x = 1,311,649,445.70 × 935,356,812.30
  4. Step 4: Simplify right side
    935,356,812.30x = 1,226,860,244,385,014,016
  5. Step 5: Solve for x
    x = 1,226,860,244,385,014,016/935,356,812.30
  6. Step 6: Final answer
    x = 1,311,649,445.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.