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Finding the Fourth Proportional to 543,305.04, 815,810.54 and 460,155.30

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Solution

The fourth proportional to 543,305.04, 815,810.54 and 460,155.30 is: 690,955.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,305.04 : 815,810.54 = 460,155.30 : x
  2. Step 2: Convert to fraction form
    543,305.04/815,810.54 = 460,155.30/x
  3. Step 3: Cross multiply
    543,305.04x = 815,810.54 × 460,155.30
  4. Step 4: Simplify right side
    543,305.04x = 375,399,541,476.09
  5. Step 5: Solve for x
    x = 375,399,541,476.09/543,305.04
  6. Step 6: Final answer
    x = 690,955.38

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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.