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Finding the Fourth Proportional to 692,949.69, 956,243.61 and 434,965.77

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Solution

The fourth proportional to 692,949.69, 956,243.61 and 434,965.77 is: 600,235.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,949.69 : 956,243.61 = 434,965.77 : x
  2. Step 2: Convert to fraction form
    692,949.69/956,243.61 = 434,965.77/x
  3. Step 3: Cross multiply
    692,949.69x = 956,243.61 × 434,965.77
  4. Step 4: Simplify right side
    692,949.69x = 415,933,238,131.23
  5. Step 5: Solve for x
    x = 415,933,238,131.23/692,949.69
  6. Step 6: Final answer
    x = 600,235.84

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Double scale
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1.5x scale

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.