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Finding the Fourth Proportional to 357,616.54, 493,386.75 and 228,630.52

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Solution

The fourth proportional to 357,616.54, 493,386.75 and 228,630.52 is: 315,430.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,616.54 : 493,386.75 = 228,630.52 : x
  2. Step 2: Convert to fraction form
    357,616.54/493,386.75 = 228,630.52/x
  3. Step 3: Cross multiply
    357,616.54x = 493,386.75 × 228,630.52
  4. Step 4: Simplify right side
    357,616.54x = 112,803,269,213.61
  5. Step 5: Solve for x
    x = 112,803,269,213.61/357,616.54
  6. Step 6: Final answer
    x = 315,430.79

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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.