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Finding the Fourth Proportional to 884,953.80, 1,327,430.70 and 245,256.30

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Solution

The fourth proportional to 884,953.80, 1,327,430.70 and 245,256.30 is: 367,884.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,953.80 : 1,327,430.70 = 245,256.30 : x
  2. Step 2: Convert to fraction form
    884,953.80/1,327,430.70 = 245,256.30/x
  3. Step 3: Cross multiply
    884,953.80x = 1,327,430.70 × 245,256.30
  4. Step 4: Simplify right side
    884,953.80x = 325,560,741,988.41
  5. Step 5: Solve for x
    x = 325,560,741,988.41/884,953.80
  6. Step 6: Final answer
    x = 367,884.45

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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.