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Finding the Fourth Proportional to 671,141.86, 926,175.93 and 369,335.86

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Solution

The fourth proportional to 671,141.86, 926,175.93 and 369,335.86 is: 509,683.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,141.86 : 926,175.93 = 369,335.86 : x
  2. Step 2: Convert to fraction form
    671,141.86/926,175.93 = 369,335.86/x
  3. Step 3: Cross multiply
    671,141.86x = 926,175.93 × 369,335.86
  4. Step 4: Simplify right side
    671,141.86x = 342,069,983,617.85
  5. Step 5: Solve for x
    x = 342,069,983,617.85/671,141.86
  6. Step 6: Final answer
    x = 509,683.58

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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.