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Finding the Fourth Proportional to 349,681.40, 482,302.03 and 240,820.31

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Solution

The fourth proportional to 349,681.40, 482,302.03 and 240,820.31 is: 332,154.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,681.40 : 482,302.03 = 240,820.31 : x
  2. Step 2: Convert to fraction form
    349,681.40/482,302.03 = 240,820.31/x
  3. Step 3: Cross multiply
    349,681.40x = 482,302.03 × 240,820.31
  4. Step 4: Simplify right side
    349,681.40x = 116,148,121,364.67
  5. Step 5: Solve for x
    x = 116,148,121,364.67/349,681.40
  6. Step 6: Final answer
    x = 332,154.14

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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.