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Finding the Fourth Proportional to 3,120,644.40, 4,374,800.40 and 3,120,644.40

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Solution

The fourth proportional to 3,120,644.40, 4,374,800.40 and 3,120,644.40 is: 4,374,800.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,644.40 : 4,374,800.40 = 3,120,644.40 : x
  2. Step 2: Convert to fraction form
    3,120,644.40/4,374,800.40 = 3,120,644.40/x
  3. Step 3: Cross multiply
    3,120,644.40x = 4,374,800.40 × 3,120,644.40
  4. Step 4: Simplify right side
    3,120,644.40x = 13,652,196,369,377.76
  5. Step 5: Solve for x
    x = 13,652,196,369,377.76/3,120,644.40
  6. Step 6: Final answer
    x = 4,374,800.40

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.