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Finding the Fourth Proportional to 524,416.20, 785,943.90 and 243,335.40

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Solution

The fourth proportional to 524,416.20, 785,943.90 and 243,335.40 is: 364,687.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,416.20 : 785,943.90 = 243,335.40 : x
  2. Step 2: Convert to fraction form
    524,416.20/785,943.90 = 243,335.40/x
  3. Step 3: Cross multiply
    524,416.20x = 785,943.90 × 243,335.40
  4. Step 4: Simplify right side
    524,416.20x = 191,247,973,284.06
  5. Step 5: Solve for x
    x = 191,247,973,284.06/524,416.20
  6. Step 6: Final answer
    x = 364,687.39

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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.