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Finding the Fourth Proportional to 483,423.40, 724,443.90 and 356,069.80

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Solution

The fourth proportional to 483,423.40, 724,443.90 and 356,069.80 is: 533,595.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,423.40 : 724,443.90 = 356,069.80 : x
  2. Step 2: Convert to fraction form
    483,423.40/724,443.90 = 356,069.80/x
  3. Step 3: Cross multiply
    483,423.40x = 724,443.90 × 356,069.80
  4. Step 4: Simplify right side
    483,423.40x = 257,952,594,584.22
  5. Step 5: Solve for x
    x = 257,952,594,584.22/483,423.40
  6. Step 6: Final answer
    x = 533,595.59

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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.