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Finding the Fourth Proportional to 364,701.69, 502,685.90 and 243,798.86

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Solution

The fourth proportional to 364,701.69, 502,685.90 and 243,798.86 is: 336,039.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,701.69 : 502,685.90 = 243,798.86 : x
  2. Step 2: Convert to fraction form
    364,701.69/502,685.90 = 243,798.86/x
  3. Step 3: Cross multiply
    364,701.69x = 502,685.90 × 243,798.86
  4. Step 4: Simplify right side
    364,701.69x = 122,554,250,310.04
  5. Step 5: Solve for x
    x = 122,554,250,310.04/364,701.69
  6. Step 6: Final answer
    x = 336,039.71

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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.