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Finding the Fourth Proportional to 692,841.44, 955,705.44 and 420,771.04

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Solution

The fourth proportional to 692,841.44, 955,705.44 and 420,771.04 is: 580,411.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,841.44 : 955,705.44 = 420,771.04 : x
  2. Step 2: Convert to fraction form
    692,841.44/955,705.44 = 420,771.04/x
  3. Step 3: Cross multiply
    692,841.44x = 955,705.44 × 420,771.04
  4. Step 4: Simplify right side
    692,841.44x = 402,133,171,922.46
  5. Step 5: Solve for x
    x = 402,133,171,922.46/692,841.44
  6. Step 6: Final answer
    x = 580,411.55

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Double scale
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Similar ratio
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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.