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Finding the Fourth Proportional to 358,928.91, 495,298.58 and 197,783.96

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Solution

The fourth proportional to 358,928.91, 495,298.58 and 197,783.96 is: 272,929.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,928.91 : 495,298.58 = 197,783.96 : x
  2. Step 2: Convert to fraction form
    358,928.91/495,298.58 = 197,783.96/x
  3. Step 3: Cross multiply
    358,928.91x = 495,298.58 × 197,783.96
  4. Step 4: Simplify right side
    358,928.91x = 97,962,111,069.36
  5. Step 5: Solve for x
    x = 97,962,111,069.36/358,928.91
  6. Step 6: Final answer
    x = 272,929.01

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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.