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Finding the Fourth Proportional to 607,658.60, 910,904.70 and 472,647.80

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Solution

The fourth proportional to 607,658.60, 910,904.70 and 472,647.80 is: 708,518.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,658.60 : 910,904.70 = 472,647.80 : x
  2. Step 2: Convert to fraction form
    607,658.60/910,904.70 = 472,647.80/x
  3. Step 3: Cross multiply
    607,658.60x = 910,904.70 × 472,647.80
  4. Step 4: Simplify right side
    607,658.60x = 430,537,102,464.66
  5. Step 5: Solve for x
    x = 430,537,102,464.66/607,658.60
  6. Step 6: Final answer
    x = 708,518.08

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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.