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Finding the Fourth Proportional to 709,598, 979,245.24 and 483,638.24

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Solution

The fourth proportional to 709,598, 979,245.24 and 483,638.24 is: 667,420.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,598 : 979,245.24 = 483,638.24 : x
  2. Step 2: Convert to fraction form
    709,598/979,245.24 = 483,638.24/x
  3. Step 3: Cross multiply
    709,598x = 979,245.24 × 483,638.24
  4. Step 4: Simplify right side
    709,598x = 473,600,444,401.98
  5. Step 5: Solve for x
    x = 473,600,444,401.98/709,598
  6. Step 6: Final answer
    x = 667,420.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.