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Finding the Fourth Proportional to 554,415.70, 831,623.55 and 532,642.90

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Solution

The fourth proportional to 554,415.70, 831,623.55 and 532,642.90 is: 798,964.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,415.70 : 831,623.55 = 532,642.90 : x
  2. Step 2: Convert to fraction form
    554,415.70/831,623.55 = 532,642.90/x
  3. Step 3: Cross multiply
    554,415.70x = 831,623.55 × 532,642.90
  4. Step 4: Simplify right side
    554,415.70x = 442,958,379,380.30
  5. Step 5: Solve for x
    x = 442,958,379,380.30/554,415.70
  6. Step 6: Final answer
    x = 798,964.35

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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.