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Finding the Fourth Proportional to 543,904.60, 815,532.90 and 333,693.40

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Solution

The fourth proportional to 543,904.60, 815,532.90 and 333,693.40 is: 500,341.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,904.60 : 815,532.90 = 333,693.40 : x
  2. Step 2: Convert to fraction form
    543,904.60/815,532.90 = 333,693.40/x
  3. Step 3: Cross multiply
    543,904.60x = 815,532.90 × 333,693.40
  4. Step 4: Simplify right side
    543,904.60x = 272,137,946,212.86
  5. Step 5: Solve for x
    x = 272,137,946,212.86/543,904.60
  6. Step 6: Final answer
    x = 500,341.32

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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.