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Finding the Fourth Proportional to 569,081.76, 785,331.23 and 314,431.13

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Solution

The fourth proportional to 569,081.76, 785,331.23 and 314,431.13 is: 433,914.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,081.76 : 785,331.23 = 314,431.13 : x
  2. Step 2: Convert to fraction form
    569,081.76/785,331.23 = 314,431.13/x
  3. Step 3: Cross multiply
    569,081.76x = 785,331.23 × 314,431.13
  4. Step 4: Simplify right side
    569,081.76x = 246,932,580,574.38
  5. Step 5: Solve for x
    x = 246,932,580,574.38/569,081.76
  6. Step 6: Final answer
    x = 433,914.07

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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.