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Finding the Fourth Proportional to 549,709.20, 824,563.80 and 362,720.70

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Solution

The fourth proportional to 549,709.20, 824,563.80 and 362,720.70 is: 544,081.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,709.20 : 824,563.80 = 362,720.70 : x
  2. Step 2: Convert to fraction form
    549,709.20/824,563.80 = 362,720.70/x
  3. Step 3: Cross multiply
    549,709.20x = 824,563.80 × 362,720.70
  4. Step 4: Simplify right side
    549,709.20x = 299,086,358,730.66
  5. Step 5: Solve for x
    x = 299,086,358,730.66/549,709.20
  6. Step 6: Final answer
    x = 544,081.05

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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.