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Finding the Fourth Proportional to 358,957.61, 495,364.77 and 197,818.41

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Solution

The fourth proportional to 358,957.61, 495,364.77 and 197,818.41 is: 272,991.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,957.61 : 495,364.77 = 197,818.41 : x
  2. Step 2: Convert to fraction form
    358,957.61/495,364.77 = 197,818.41/x
  3. Step 3: Cross multiply
    358,957.61x = 495,364.77 × 197,818.41
  4. Step 4: Simplify right side
    358,957.61x = 97,992,271,171.42
  5. Step 5: Solve for x
    x = 97,992,271,171.42/358,957.61
  6. Step 6: Final answer
    x = 272,991.21

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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.