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Finding the Fourth Proportional to 540,920.08, 810,663.42 and 287,655.23

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Solution

The fourth proportional to 540,920.08, 810,663.42 and 287,655.23 is: 431,101.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,920.08 : 810,663.42 = 287,655.23 : x
  2. Step 2: Convert to fraction form
    540,920.08/810,663.42 = 287,655.23/x
  3. Step 3: Cross multiply
    540,920.08x = 810,663.42 × 287,655.23
  4. Step 4: Simplify right side
    540,920.08x = 233,191,575,638.05
  5. Step 5: Solve for x
    x = 233,191,575,638.05/540,920.08
  6. Step 6: Final answer
    x = 431,101.71

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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.