Home / 529,899.30-731,254.04-288,176.70

Finding the Fourth Proportional to 529,899.30, 731,254.04 and 288,176.70

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Solution

The fourth proportional to 529,899.30, 731,254.04 and 288,176.70 is: 397,680.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,899.30 : 731,254.04 = 288,176.70 : x
  2. Step 2: Convert to fraction form
    529,899.30/731,254.04 = 288,176.70/x
  3. Step 3: Cross multiply
    529,899.30x = 731,254.04 × 288,176.70
  4. Step 4: Simplify right side
    529,899.30x = 210,730,374,667.99
  5. Step 5: Solve for x
    x = 210,730,374,667.99/529,899.30
  6. Step 6: Final answer
    x = 397,680.04

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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.