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Finding the Fourth Proportional to 413,090.94, 570,019.20 and 231,765.18

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Solution

The fourth proportional to 413,090.94, 570,019.20 and 231,765.18 is: 319,809.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,090.94 : 570,019.20 = 231,765.18 : x
  2. Step 2: Convert to fraction form
    413,090.94/570,019.20 = 231,765.18/x
  3. Step 3: Cross multiply
    413,090.94x = 570,019.20 × 231,765.18
  4. Step 4: Simplify right side
    413,090.94x = 132,110,602,491.46
  5. Step 5: Solve for x
    x = 132,110,602,491.46/413,090.94
  6. Step 6: Final answer
    x = 319,809.97

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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.