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Finding the Fourth Proportional to 553,041.71, 763,310.60 and 348,955.14

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Solution

The fourth proportional to 553,041.71, 763,310.60 and 348,955.14 is: 481,629.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,041.71 : 763,310.60 = 348,955.14 : x
  2. Step 2: Convert to fraction form
    553,041.71/763,310.60 = 348,955.14/x
  3. Step 3: Cross multiply
    553,041.71x = 763,310.60 × 348,955.14
  4. Step 4: Simplify right side
    553,041.71x = 266,361,157,381.96
  5. Step 5: Solve for x
    x = 266,361,157,381.96/553,041.71
  6. Step 6: Final answer
    x = 481,629.42

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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.