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Finding the Fourth Proportional to 423,365.40, 584,143.74 and 239,606.46

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Solution

The fourth proportional to 423,365.40, 584,143.74 and 239,606.46 is: 330,600.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,365.40 : 584,143.74 = 239,606.46 : x
  2. Step 2: Convert to fraction form
    423,365.40/584,143.74 = 239,606.46/x
  3. Step 3: Cross multiply
    423,365.40x = 584,143.74 × 239,606.46
  4. Step 4: Simplify right side
    423,365.40x = 139,964,613,672.56
  5. Step 5: Solve for x
    x = 139,964,613,672.56/423,365.40
  6. Step 6: Final answer
    x = 330,600.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.