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Finding the Fourth Proportional to 479,283.52, 661,423.92 and 264,426.40

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Solution

The fourth proportional to 479,283.52, 661,423.92 and 264,426.40 is: 364,915.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,283.52 : 661,423.92 = 264,426.40 : x
  2. Step 2: Convert to fraction form
    479,283.52/661,423.92 = 264,426.40/x
  3. Step 3: Cross multiply
    479,283.52x = 661,423.92 × 264,426.40
  4. Step 4: Simplify right side
    479,283.52x = 174,897,946,039.49
  5. Step 5: Solve for x
    x = 174,897,946,039.49/479,283.52
  6. Step 6: Final answer
    x = 364,915.42

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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.