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Finding the Fourth Proportional to 524,271.20, 786,998.10 and 347,124.20

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Solution

The fourth proportional to 524,271.20, 786,998.10 and 347,124.20 is: 521,077.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,271.20 : 786,998.10 = 347,124.20 : x
  2. Step 2: Convert to fraction form
    524,271.20/786,998.10 = 347,124.20/x
  3. Step 3: Cross multiply
    524,271.20x = 786,998.10 × 347,124.20
  4. Step 4: Simplify right side
    524,271.20x = 273,186,085,864.02
  5. Step 5: Solve for x
    x = 273,186,085,864.02/524,271.20
  6. Step 6: Final answer
    x = 521,077.80

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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.