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Finding the Fourth Proportional to 516,848.90, 774,697.35 and 201,200.90

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Solution

The fourth proportional to 516,848.90, 774,697.35 and 201,200.90 is: 301,577.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,848.90 : 774,697.35 = 201,200.90 : x
  2. Step 2: Convert to fraction form
    516,848.90/774,697.35 = 201,200.90/x
  3. Step 3: Cross multiply
    516,848.90x = 774,697.35 × 201,200.90
  4. Step 4: Simplify right side
    516,848.90x = 155,869,804,047.62
  5. Step 5: Solve for x
    x = 155,869,804,047.62/516,848.90
  6. Step 6: Final answer
    x = 301,577.12

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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.