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Finding the Fourth Proportional to 393,461.08, 542,960.58 and 232,368.04

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Solution

The fourth proportional to 393,461.08, 542,960.58 and 232,368.04 is: 320,658.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,461.08 : 542,960.58 = 232,368.04 : x
  2. Step 2: Convert to fraction form
    393,461.08/542,960.58 = 232,368.04/x
  3. Step 3: Cross multiply
    393,461.08x = 542,960.58 × 232,368.04
  4. Step 4: Simplify right side
    393,461.08x = 126,166,685,771.86
  5. Step 5: Solve for x
    x = 126,166,685,771.86/393,461.08
  6. Step 6: Final answer
    x = 320,658.62

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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.