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Finding the Fourth Proportional to 524,084.40, 784,312.20 and 313,873.20

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Solution

The fourth proportional to 524,084.40, 784,312.20 and 313,873.20 is: 469,723.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,084.40 : 784,312.20 = 313,873.20 : x
  2. Step 2: Convert to fraction form
    524,084.40/784,312.20 = 313,873.20/x
  3. Step 3: Cross multiply
    524,084.40x = 784,312.20 × 313,873.20
  4. Step 4: Simplify right side
    524,084.40x = 246,174,580,013.04
  5. Step 5: Solve for x
    x = 246,174,580,013.04/524,084.40
  6. Step 6: Final answer
    x = 469,723.16

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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.