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Finding the Fourth Proportional to 607,368.60, 910,469.70 and 472,357.80

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Solution

The fourth proportional to 607,368.60, 910,469.70 and 472,357.80 is: 708,083.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,368.60 : 910,469.70 = 472,357.80 : x
  2. Step 2: Convert to fraction form
    607,368.60/910,469.70 = 472,357.80/x
  3. Step 3: Cross multiply
    607,368.60x = 910,469.70 × 472,357.80
  4. Step 4: Simplify right side
    607,368.60x = 430,067,464,458.66
  5. Step 5: Solve for x
    x = 430,067,464,458.66/607,368.60
  6. Step 6: Final answer
    x = 708,083.14

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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.