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Finding the Fourth Proportional to 516,849.40, 774,698.10 and 201,201.40

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Solution

The fourth proportional to 516,849.40, 774,698.10 and 201,201.40 is: 301,577.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,849.40 : 774,698.10 = 201,201.40 : x
  2. Step 2: Convert to fraction form
    516,849.40/774,698.10 = 201,201.40/x
  3. Step 3: Cross multiply
    516,849.40x = 774,698.10 × 201,201.40
  4. Step 4: Simplify right side
    516,849.40x = 155,870,342,297.34
  5. Step 5: Solve for x
    x = 155,870,342,297.34/516,849.40
  6. Step 6: Final answer
    x = 301,577.87

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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.