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Finding the Fourth Proportional to 530,779.40, 732,626.10 and 349,623.56

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Solution

The fourth proportional to 530,779.40, 732,626.10 and 349,623.56 is: 482,579.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,779.40 : 732,626.10 = 349,623.56 : x
  2. Step 2: Convert to fraction form
    530,779.40/732,626.10 = 349,623.56/x
  3. Step 3: Cross multiply
    530,779.40x = 732,626.10 × 349,623.56
  4. Step 4: Simplify right side
    530,779.40x = 256,143,345,230.92
  5. Step 5: Solve for x
    x = 256,143,345,230.92/530,779.40
  6. Step 6: Final answer
    x = 482,579.67

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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.