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Finding the Fourth Proportional to 473,047.20, 709,570.80 and 331,329.60

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Solution

The fourth proportional to 473,047.20, 709,570.80 and 331,329.60 is: 496,994.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,047.20 : 709,570.80 = 331,329.60 : x
  2. Step 2: Convert to fraction form
    473,047.20/709,570.80 = 331,329.60/x
  3. Step 3: Cross multiply
    473,047.20x = 709,570.80 × 331,329.60
  4. Step 4: Simplify right side
    473,047.20x = 235,101,809,335.68
  5. Step 5: Solve for x
    x = 235,101,809,335.68/473,047.20
  6. Step 6: Final answer
    x = 496,994.40

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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.