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Finding the Fourth Proportional to 661,700.25, 992,550.38 and 163,064.25

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Solution

The fourth proportional to 661,700.25, 992,550.38 and 163,064.25 is: 244,596.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,700.25 : 992,550.38 = 163,064.25 : x
  2. Step 2: Convert to fraction form
    661,700.25/992,550.38 = 163,064.25/x
  3. Step 3: Cross multiply
    661,700.25x = 992,550.38 × 163,064.25
  4. Step 4: Simplify right side
    661,700.25x = 161,849,482,486.59
  5. Step 5: Solve for x
    x = 161,849,482,486.59/661,700.25
  6. Step 6: Final answer
    x = 244,596.38

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.