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Finding the Fourth Proportional to 575,996.80, 863,995.20 and 534,006.40

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Solution

The fourth proportional to 575,996.80, 863,995.20 and 534,006.40 is: 801,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,996.80 : 863,995.20 = 534,006.40 : x
  2. Step 2: Convert to fraction form
    575,996.80/863,995.20 = 534,006.40/x
  3. Step 3: Cross multiply
    575,996.80x = 863,995.20 × 534,006.40
  4. Step 4: Simplify right side
    575,996.80x = 461,378,966,369.28
  5. Step 5: Solve for x
    x = 461,378,966,369.28/575,996.80
  6. Step 6: Final answer
    x = 801,009.60

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Similar ratio
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1.5x scale

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.