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Finding the Fourth Proportional to 458,330.76, 632,486.92 and 254,369.72

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Solution

The fourth proportional to 458,330.76, 632,486.92 and 254,369.72 is: 351,024.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,330.76 : 632,486.92 = 254,369.72 : x
  2. Step 2: Convert to fraction form
    458,330.76/632,486.92 = 254,369.72/x
  3. Step 3: Cross multiply
    458,330.76x = 632,486.92 × 254,369.72
  4. Step 4: Simplify right side
    458,330.76x = 160,885,520,744.06
  5. Step 5: Solve for x
    x = 160,885,520,744.06/458,330.76
  6. Step 6: Final answer
    x = 351,024.93

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1.5x scale

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.