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Finding the Fourth Proportional to 610,417,480.80, 915,682,208.40 and 201,474,530.40

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Solution

The fourth proportional to 610,417,480.80, 915,682,208.40 and 201,474,530.40 is: 302,230,274.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,417,480.80 : 915,682,208.40 = 201,474,530.40 : x
  2. Step 2: Convert to fraction form
    610,417,480.80/915,682,208.40 = 201,474,530.40/x
  3. Step 3: Cross multiply
    610,417,480.80x = 915,682,208.40 × 201,474,530.40
  4. Step 4: Simplify right side
    610,417,480.80x = 184,486,642,933,024,928
  5. Step 5: Solve for x
    x = 184,486,642,933,024,928/610,417,480.80
  6. Step 6: Final answer
    x = 302,230,274.75

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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.