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Finding the Fourth Proportional to 483,435.40, 724,461.90 and 356,081.80

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Solution

The fourth proportional to 483,435.40, 724,461.90 and 356,081.80 is: 533,613.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,435.40 : 724,461.90 = 356,081.80 : x
  2. Step 2: Convert to fraction form
    483,435.40/724,461.90 = 356,081.80/x
  3. Step 3: Cross multiply
    483,435.40x = 724,461.90 × 356,081.80
  4. Step 4: Simplify right side
    483,435.40x = 257,967,697,383.42
  5. Step 5: Solve for x
    x = 257,967,697,383.42/483,435.40
  6. Step 6: Final answer
    x = 533,613.59

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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.