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Finding the Fourth Proportional to 720,050.56, 993,631.39 and 414,078.32

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Solution

The fourth proportional to 720,050.56, 993,631.39 and 414,078.32 is: 571,406.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,050.56 : 993,631.39 = 414,078.32 : x
  2. Step 2: Convert to fraction form
    720,050.56/993,631.39 = 414,078.32/x
  3. Step 3: Cross multiply
    720,050.56x = 993,631.39 × 414,078.32
  4. Step 4: Simplify right side
    720,050.56x = 411,441,218,119.35
  5. Step 5: Solve for x
    x = 411,441,218,119.35/720,050.56
  6. Step 6: Final answer
    x = 571,406.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.