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Finding the Fourth Proportional to 357,227.88, 537,980.26 and 325,341.42

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Solution

The fourth proportional to 357,227.88, 537,980.26 and 325,341.42 is: 489,959.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,227.88 : 537,980.26 = 325,341.42 : x
  2. Step 2: Convert to fraction form
    357,227.88/537,980.26 = 325,341.42/x
  3. Step 3: Cross multiply
    357,227.88x = 537,980.26 × 325,341.42
  4. Step 4: Simplify right side
    357,227.88x = 175,027,264,038.81
  5. Step 5: Solve for x
    x = 175,027,264,038.81/357,227.88
  6. Step 6: Final answer
    x = 489,959.69

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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.