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Finding the Fourth Proportional to 554,466.80, 831,700.20 and 414,498.80

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Solution

The fourth proportional to 554,466.80, 831,700.20 and 414,498.80 is: 621,748.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,466.80 : 831,700.20 = 414,498.80 : x
  2. Step 2: Convert to fraction form
    554,466.80/831,700.20 = 414,498.80/x
  3. Step 3: Cross multiply
    554,466.80x = 831,700.20 × 414,498.80
  4. Step 4: Simplify right side
    554,466.80x = 344,738,734,859.76
  5. Step 5: Solve for x
    x = 344,738,734,859.76/554,466.80
  6. Step 6: Final answer
    x = 621,748.20

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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.