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Finding the Fourth Proportional to 310,458.40, 465,356.02 and 177,051.40

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Solution

The fourth proportional to 310,458.40, 465,356.02 and 177,051.40 is: 265,388.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,458.40 : 465,356.02 = 177,051.40 : x
  2. Step 2: Convert to fraction form
    310,458.40/465,356.02 = 177,051.40/x
  3. Step 3: Cross multiply
    310,458.40x = 465,356.02 × 177,051.40
  4. Step 4: Simplify right side
    310,458.40x = 82,391,934,839.43
  5. Step 5: Solve for x
    x = 82,391,934,839.43/310,458.40
  6. Step 6: Final answer
    x = 265,388.00

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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.