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Finding the Fourth Proportional to 472,603.20, 708,904.80 and 444,609.60

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Solution

The fourth proportional to 472,603.20, 708,904.80 and 444,609.60 is: 666,914.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,603.20 : 708,904.80 = 444,609.60 : x
  2. Step 2: Convert to fraction form
    472,603.20/708,904.80 = 444,609.60/x
  3. Step 3: Cross multiply
    472,603.20x = 708,904.80 × 444,609.60
  4. Step 4: Simplify right side
    472,603.20x = 315,185,879,566.08
  5. Step 5: Solve for x
    x = 315,185,879,566.08/472,603.20
  6. Step 6: Final answer
    x = 666,914.40

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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.