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Finding the Fourth Proportional to 579,210.12, 868,411.89 and 254,841.12

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Solution

The fourth proportional to 579,210.12, 868,411.89 and 254,841.12 is: 382,084.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,210.12 : 868,411.89 = 254,841.12 : x
  2. Step 2: Convert to fraction form
    579,210.12/868,411.89 = 254,841.12/x
  3. Step 3: Cross multiply
    579,210.12x = 868,411.89 × 254,841.12
  4. Step 4: Simplify right side
    579,210.12x = 221,307,058,668.92
  5. Step 5: Solve for x
    x = 221,307,058,668.92/579,210.12
  6. Step 6: Final answer
    x = 382,084.24

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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.