Home / 547,286,297.60-819,784,819.20-256,401,689.60

Finding the Fourth Proportional to 547,286,297.60, 819,784,819.20 and 256,401,689.60

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Solution

The fourth proportional to 547,286,297.60, 819,784,819.20 and 256,401,689.60 is: 384,066,280.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,286,297.60 : 819,784,819.20 = 256,401,689.60 : x
  2. Step 2: Convert to fraction form
    547,286,297.60/819,784,819.20 = 256,401,689.60/x
  3. Step 3: Cross multiply
    547,286,297.60x = 819,784,819.20 × 256,401,689.60
  4. Step 4: Simplify right side
    547,286,297.60x = 210,194,212,751,310,528
  5. Step 5: Solve for x
    x = 210,194,212,751,310,528/547,286,297.60
  6. Step 6: Final answer
    x = 384,066,280.62

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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.