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Finding the Fourth Proportional to 719,574.03, 993,051.09 and 397,283.13

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Solution

The fourth proportional to 719,574.03, 993,051.09 and 397,283.13 is: 548,272.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,574.03 : 993,051.09 = 397,283.13 : x
  2. Step 2: Convert to fraction form
    719,574.03/993,051.09 = 397,283.13/x
  3. Step 3: Cross multiply
    719,574.03x = 993,051.09 × 397,283.13
  4. Step 4: Simplify right side
    719,574.03x = 394,522,445,285.11
  5. Step 5: Solve for x
    x = 394,522,445,285.11/719,574.03
  6. Step 6: Final answer
    x = 548,272.21

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.