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Finding the Fourth Proportional to 483,434.40, 724,460.40 and 356,080.80

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Solution

The fourth proportional to 483,434.40, 724,460.40 and 356,080.80 is: 533,612.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,434.40 : 724,460.40 = 356,080.80 : x
  2. Step 2: Convert to fraction form
    483,434.40/724,460.40 = 356,080.80/x
  3. Step 3: Cross multiply
    483,434.40x = 724,460.40 × 356,080.80
  4. Step 4: Simplify right side
    483,434.40x = 257,966,438,800.32
  5. Step 5: Solve for x
    x = 257,966,438,800.32/483,434.40
  6. Step 6: Final answer
    x = 533,612.09

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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.