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Finding the Fourth Proportional to 534,741.20, 802,111.80 and 476,680.40

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Solution

The fourth proportional to 534,741.20, 802,111.80 and 476,680.40 is: 715,020.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,741.20 : 802,111.80 = 476,680.40 : x
  2. Step 2: Convert to fraction form
    534,741.20/802,111.80 = 476,680.40/x
  3. Step 3: Cross multiply
    534,741.20x = 802,111.80 × 476,680.40
  4. Step 4: Simplify right side
    534,741.20x = 382,350,973,668.72
  5. Step 5: Solve for x
    x = 382,350,973,668.72/534,741.20
  6. Step 6: Final answer
    x = 715,020.60

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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.