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Finding the Fourth Proportional to 534,607.80, 802,127.70 and 235,145.40

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Solution

The fourth proportional to 534,607.80, 802,127.70 and 235,145.40 is: 352,813.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,607.80 : 802,127.70 = 235,145.40 : x
  2. Step 2: Convert to fraction form
    534,607.80/802,127.70 = 235,145.40/x
  3. Step 3: Cross multiply
    534,607.80x = 802,127.70 × 235,145.40
  4. Step 4: Simplify right side
    534,607.80x = 188,616,638,867.58
  5. Step 5: Solve for x
    x = 188,616,638,867.58/534,607.80
  6. Step 6: Final answer
    x = 352,813.11

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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.