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Finding the Fourth Proportional to 455,410.90, 683,116.35 and 366,837.40

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Solution

The fourth proportional to 455,410.90, 683,116.35 and 366,837.40 is: 550,256.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,410.90 : 683,116.35 = 366,837.40 : x
  2. Step 2: Convert to fraction form
    455,410.90/683,116.35 = 366,837.40/x
  3. Step 3: Cross multiply
    455,410.90x = 683,116.35 × 366,837.40
  4. Step 4: Simplify right side
    455,410.90x = 250,592,625,731.49
  5. Step 5: Solve for x
    x = 250,592,625,731.49/455,410.90
  6. Step 6: Final answer
    x = 550,256.10

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Similar ratio
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1.5x scale

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.