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Finding the Fourth Proportional to 691,252.25, 953,928.11 and 373,300.25

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Solution

The fourth proportional to 691,252.25, 953,928.11 and 373,300.25 is: 515,154.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,252.25 : 953,928.11 = 373,300.25 : x
  2. Step 2: Convert to fraction form
    691,252.25/953,928.11 = 373,300.25/x
  3. Step 3: Cross multiply
    691,252.25x = 953,928.11 × 373,300.25
  4. Step 4: Simplify right side
    691,252.25x = 356,101,600,078.53
  5. Step 5: Solve for x
    x = 356,101,600,078.53/691,252.25
  6. Step 6: Final answer
    x = 515,154.35

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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.