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Finding the Fourth Proportional to 3,621,688,250.78, 5,432,532,376.16 and 3,621,688,250.78

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Solution

The fourth proportional to 3,621,688,250.78, 5,432,532,376.16 and 3,621,688,250.78 is: 5,432,532,376.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,621,688,250.78 : 5,432,532,376.16 = 3,621,688,250.78 : x
  2. Step 2: Convert to fraction form
    3,621,688,250.78/5,432,532,376.16 = 3,621,688,250.78/x
  3. Step 3: Cross multiply
    3,621,688,250.78x = 5,432,532,376.16 × 3,621,688,250.78
  4. Step 4: Simplify right side
    3,621,688,250.78x = 19,674,938,678,702,522,368
  5. Step 5: Solve for x
    x = 19,674,938,678,702,522,368/3,621,688,250.78
  6. Step 6: Final answer
    x = 5,432,532,376.16

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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.