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Finding the Fourth Proportional to 530,027.78, 731,457.73 and 294,288.32

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Solution

The fourth proportional to 530,027.78, 731,457.73 and 294,288.32 is: 406,128.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,027.78 : 731,457.73 = 294,288.32 : x
  2. Step 2: Convert to fraction form
    530,027.78/731,457.73 = 294,288.32/x
  3. Step 3: Cross multiply
    530,027.78x = 731,457.73 × 294,288.32
  4. Step 4: Simplify right side
    530,027.78x = 215,259,466,512.71
  5. Step 5: Solve for x
    x = 215,259,466,512.71/530,027.78
  6. Step 6: Final answer
    x = 406,128.65

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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.