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Finding the Fourth Proportional to 584,411.40, 876,617.10 and 303,892.20

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Solution

The fourth proportional to 584,411.40, 876,617.10 and 303,892.20 is: 455,838.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,411.40 : 876,617.10 = 303,892.20 : x
  2. Step 2: Convert to fraction form
    584,411.40/876,617.10 = 303,892.20/x
  3. Step 3: Cross multiply
    584,411.40x = 876,617.10 × 303,892.20
  4. Step 4: Simplify right side
    584,411.40x = 266,397,099,076.62
  5. Step 5: Solve for x
    x = 266,397,099,076.62/584,411.40
  6. Step 6: Final answer
    x = 455,838.30

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Half scale
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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.