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Finding the Fourth Proportional to 310,341.18, 428,289.18 and 233,725.14

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Solution

The fourth proportional to 310,341.18, 428,289.18 and 233,725.14 is: 322,554.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,341.18 : 428,289.18 = 233,725.14 : x
  2. Step 2: Convert to fraction form
    310,341.18/428,289.18 = 233,725.14/x
  3. Step 3: Cross multiply
    310,341.18x = 428,289.18 × 233,725.14
  4. Step 4: Simplify right side
    310,341.18x = 100,101,948,555.99
  5. Step 5: Solve for x
    x = 100,101,948,555.99/310,341.18
  6. Step 6: Final answer
    x = 322,554.51

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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.