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Finding the Fourth Proportional to 624,900.30, 934,981.20 and 414,948.30

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Solution

The fourth proportional to 624,900.30, 934,981.20 and 414,948.30 is: 620,849.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,900.30 : 934,981.20 = 414,948.30 : x
  2. Step 2: Convert to fraction form
    624,900.30/934,981.20 = 414,948.30/x
  3. Step 3: Cross multiply
    624,900.30x = 934,981.20 × 414,948.30
  4. Step 4: Simplify right side
    624,900.30x = 387,968,859,471.96
  5. Step 5: Solve for x
    x = 387,968,859,471.96/624,900.30
  6. Step 6: Final answer
    x = 620,849.21

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Double scale
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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.