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Finding the Fourth Proportional to 549,533.16, 828,672.12 and 542,039.04

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Solution

The fourth proportional to 549,533.16, 828,672.12 and 542,039.04 is: 817,371.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,533.16 : 828,672.12 = 542,039.04 : x
  2. Step 2: Convert to fraction form
    549,533.16/828,672.12 = 542,039.04/x
  3. Step 3: Cross multiply
    549,533.16x = 828,672.12 × 542,039.04
  4. Step 4: Simplify right side
    549,533.16x = 449,172,640,399.57
  5. Step 5: Solve for x
    x = 449,172,640,399.57/549,533.16
  6. Step 6: Final answer
    x = 817,371.31

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.