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Finding the Fourth Proportional to 624,339.20, 934,435.20 and 437,715.20

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Solution

The fourth proportional to 624,339.20, 934,435.20 and 437,715.20 is: 655,119.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,339.20 : 934,435.20 = 437,715.20 : x
  2. Step 2: Convert to fraction form
    624,339.20/934,435.20 = 437,715.20/x
  3. Step 3: Cross multiply
    624,339.20x = 934,435.20 × 437,715.20
  4. Step 4: Simplify right side
    624,339.20x = 409,016,490,455.04
  5. Step 5: Solve for x
    x = 409,016,490,455.04/624,339.20
  6. Step 6: Final answer
    x = 655,119.03

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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.