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Finding the Fourth Proportional to 493,262.60, 740,088.30 and 193,692.20

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Solution

The fourth proportional to 493,262.60, 740,088.30 and 193,692.20 is: 290,614.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,262.60 : 740,088.30 = 193,692.20 : x
  2. Step 2: Convert to fraction form
    493,262.60/740,088.30 = 193,692.20/x
  3. Step 3: Cross multiply
    493,262.60x = 740,088.30 × 193,692.20
  4. Step 4: Simplify right side
    493,262.60x = 143,349,331,021.26
  5. Step 5: Solve for x
    x = 143,349,331,021.26/493,262.60
  6. Step 6: Final answer
    x = 290,614.64

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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.