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Finding the Fourth Proportional to 397,594.79, 549,011.91 and 368,746.44

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Solution

The fourth proportional to 397,594.79, 549,011.91 and 368,746.44 is: 509,177.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,594.79 : 549,011.91 = 368,746.44 : x
  2. Step 2: Convert to fraction form
    397,594.79/549,011.91 = 368,746.44/x
  3. Step 3: Cross multiply
    397,594.79x = 549,011.91 × 368,746.44
  4. Step 4: Simplify right side
    397,594.79x = 202,446,187,330.10
  5. Step 5: Solve for x
    x = 202,446,187,330.10/397,594.79
  6. Step 6: Final answer
    x = 509,177.16

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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.