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Finding the Fourth Proportional to 617,160.31, 925,501.13 and 212,275.53

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Solution

The fourth proportional to 617,160.31, 925,501.13 and 212,275.53 is: 318,330.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,160.31 : 925,501.13 = 212,275.53 : x
  2. Step 2: Convert to fraction form
    617,160.31/925,501.13 = 212,275.53/x
  3. Step 3: Cross multiply
    617,160.31x = 925,501.13 × 212,275.53
  4. Step 4: Simplify right side
    617,160.31x = 196,461,241,824.97
  5. Step 5: Solve for x
    x = 196,461,241,824.97/617,160.31
  6. Step 6: Final answer
    x = 318,330.98

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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.