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Finding the Fourth Proportional to 530,518.70, 732,093.40 and 288,796.26

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Solution

The fourth proportional to 530,518.70, 732,093.40 and 288,796.26 is: 398,526.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,518.70 : 732,093.40 = 288,796.26 : x
  2. Step 2: Convert to fraction form
    530,518.70/732,093.40 = 288,796.26/x
  3. Step 3: Cross multiply
    530,518.70x = 732,093.40 × 288,796.26
  4. Step 4: Simplify right side
    530,518.70x = 211,425,835,890.68
  5. Step 5: Solve for x
    x = 211,425,835,890.68/530,518.70
  6. Step 6: Final answer
    x = 398,526.64

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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.