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Finding the Fourth Proportional to 624,341.20, 934,438.20 and 437,717.20

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Solution

The fourth proportional to 624,341.20, 934,438.20 and 437,717.20 is: 655,122.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,341.20 : 934,438.20 = 437,717.20 : x
  2. Step 2: Convert to fraction form
    624,341.20/934,438.20 = 437,717.20/x
  3. Step 3: Cross multiply
    624,341.20x = 934,438.20 × 437,717.20
  4. Step 4: Simplify right side
    624,341.20x = 409,019,672,477.04
  5. Step 5: Solve for x
    x = 409,019,672,477.04/624,341.20
  6. Step 6: Final answer
    x = 655,122.03

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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.