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Finding the Fourth Proportional to 569,014.75, 785,231.19 and 310,886.15

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Solution

The fourth proportional to 569,014.75, 785,231.19 and 310,886.15 is: 429,017.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,014.75 : 785,231.19 = 310,886.15 : x
  2. Step 2: Convert to fraction form
    569,014.75/785,231.19 = 310,886.15/x
  3. Step 3: Cross multiply
    569,014.75x = 785,231.19 × 310,886.15
  4. Step 4: Simplify right side
    569,014.75x = 244,117,499,964.59
  5. Step 5: Solve for x
    x = 244,117,499,964.59/569,014.75
  6. Step 6: Final answer
    x = 429,017.88

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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.