Home / 530,261.76-731,774.72-288,557.44

Finding the Fourth Proportional to 530,261.76, 731,774.72 and 288,557.44

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Solution

The fourth proportional to 530,261.76, 731,774.72 and 288,557.44 is: 398,216.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,261.76 : 731,774.72 = 288,557.44 : x
  2. Step 2: Convert to fraction form
    530,261.76/731,774.72 = 288,557.44/x
  3. Step 3: Cross multiply
    530,261.76x = 731,774.72 × 288,557.44
  4. Step 4: Simplify right side
    530,261.76x = 211,159,039,859.92
  5. Step 5: Solve for x
    x = 211,159,039,859.92/530,261.76
  6. Step 6: Final answer
    x = 398,216.61

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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.