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Finding the Fourth Proportional to 524,999.40, 786,692.70 and 391,252.20

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Solution

The fourth proportional to 524,999.40, 786,692.70 and 391,252.20 is: 586,277.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,999.40 : 786,692.70 = 391,252.20 : x
  2. Step 2: Convert to fraction form
    524,999.40/786,692.70 = 391,252.20/x
  3. Step 3: Cross multiply
    524,999.40x = 786,692.70 × 391,252.20
  4. Step 4: Simplify right side
    524,999.40x = 307,795,249,598.94
  5. Step 5: Solve for x
    x = 307,795,249,598.94/524,999.40
  6. Step 6: Final answer
    x = 586,277.34

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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.