Home / 672,569.03-928,137.57-366,638.66

Finding the Fourth Proportional to 672,569.03, 928,137.57 and 366,638.66

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Solution

The fourth proportional to 672,569.03, 928,137.57 and 366,638.66 is: 505,957.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,569.03 : 928,137.57 = 366,638.66 : x
  2. Step 2: Convert to fraction form
    672,569.03/928,137.57 = 366,638.66/x
  3. Step 3: Cross multiply
    672,569.03x = 928,137.57 × 366,638.66
  4. Step 4: Simplify right side
    672,569.03x = 340,291,110,319.77
  5. Step 5: Solve for x
    x = 340,291,110,319.77/672,569.03
  6. Step 6: Final answer
    x = 505,957.15

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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.