Home / 529,899.30-731,254.15-288,176.69

Finding the Fourth Proportional to 529,899.30, 731,254.15 and 288,176.69

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Solution

The fourth proportional to 529,899.30, 731,254.15 and 288,176.69 is: 397,680.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,899.30 : 731,254.15 = 288,176.69 : x
  2. Step 2: Convert to fraction form
    529,899.30/731,254.15 = 288,176.69/x
  3. Step 3: Cross multiply
    529,899.30x = 731,254.15 × 288,176.69
  4. Step 4: Simplify right side
    529,899.30x = 210,730,396,949.82
  5. Step 5: Solve for x
    x = 210,730,396,949.82/529,899.30
  6. Step 6: Final answer
    x = 397,680.08

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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.