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Finding the Fourth Proportional to 675,396.77, 932,071.56 and 369,454.91

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Solution

The fourth proportional to 675,396.77, 932,071.56 and 369,454.91 is: 509,860.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,396.77 : 932,071.56 = 369,454.91 : x
  2. Step 2: Convert to fraction form
    675,396.77/932,071.56 = 369,454.91/x
  3. Step 3: Cross multiply
    675,396.77x = 932,071.56 × 369,454.91
  4. Step 4: Simplify right side
    675,396.77x = 344,358,408,267.55
  5. Step 5: Solve for x
    x = 344,358,408,267.55/675,396.77
  6. Step 6: Final answer
    x = 509,860.91

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Half scale
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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.