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Finding the Fourth Proportional to 347,300.52, 520,101.18 and 313,642.68

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Solution

The fourth proportional to 347,300.52, 520,101.18 and 313,642.68 is: 469,696.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,300.52 : 520,101.18 = 313,642.68 : x
  2. Step 2: Convert to fraction form
    347,300.52/520,101.18 = 313,642.68/x
  3. Step 3: Cross multiply
    347,300.52x = 520,101.18 × 313,642.68
  4. Step 4: Simplify right side
    347,300.52x = 163,125,927,966.36
  5. Step 5: Solve for x
    x = 163,125,927,966.36/347,300.52
  6. Step 6: Final answer
    x = 469,696.76

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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.