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Finding the Fourth Proportional to 473,213.80, 709,820.70 and 434,506.60

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Solution

The fourth proportional to 473,213.80, 709,820.70 and 434,506.60 is: 651,759.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,213.80 : 709,820.70 = 434,506.60 : x
  2. Step 2: Convert to fraction form
    473,213.80/709,820.70 = 434,506.60/x
  3. Step 3: Cross multiply
    473,213.80x = 709,820.70 × 434,506.60
  4. Step 4: Simplify right side
    473,213.80x = 308,421,778,966.62
  5. Step 5: Solve for x
    x = 308,421,778,966.62/473,213.80
  6. Step 6: Final answer
    x = 651,759.90

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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.