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Finding the Fourth Proportional to 631,613.14, 947,073.70 and 311,060.10

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Solution

The fourth proportional to 631,613.14, 947,073.70 and 311,060.10 is: 466,419.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,613.14 : 947,073.70 = 311,060.10 : x
  2. Step 2: Convert to fraction form
    631,613.14/947,073.70 = 311,060.10/x
  3. Step 3: Cross multiply
    631,613.14x = 947,073.70 × 311,060.10
  4. Step 4: Simplify right side
    631,613.14x = 294,596,839,829.37
  5. Step 5: Solve for x
    x = 294,596,839,829.37/631,613.14
  6. Step 6: Final answer
    x = 466,419.75

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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.