Home / 521,461,569.60-782,192,354.40-327,509,224.20

Finding the Fourth Proportional to 521,461,569.60, 782,192,354.40 and 327,509,224.20

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Solution

The fourth proportional to 521,461,569.60, 782,192,354.40 and 327,509,224.20 is: 491,263,836.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,461,569.60 : 782,192,354.40 = 327,509,224.20 : x
  2. Step 2: Convert to fraction form
    521,461,569.60/782,192,354.40 = 327,509,224.20/x
  3. Step 3: Cross multiply
    521,461,569.60x = 782,192,354.40 × 327,509,224.20
  4. Step 4: Simplify right side
    521,461,569.60x = 256,175,211,164,715,424
  5. Step 5: Solve for x
    x = 256,175,211,164,715,424/521,461,569.60
  6. Step 6: Final answer
    x = 491,263,836.30

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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.