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Finding the Fourth Proportional to 524,624.80, 785,770.80 and 405,911.20

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Solution

The fourth proportional to 524,624.80, 785,770.80 and 405,911.20 is: 607,964.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,624.80 : 785,770.80 = 405,911.20 : x
  2. Step 2: Convert to fraction form
    524,624.80/785,770.80 = 405,911.20/x
  3. Step 3: Cross multiply
    524,624.80x = 785,770.80 × 405,911.20
  4. Step 4: Simplify right side
    524,624.80x = 318,953,168,352.96
  5. Step 5: Solve for x
    x = 318,953,168,352.96/524,624.80
  6. Step 6: Final answer
    x = 607,964.34

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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.