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Finding the Fourth Proportional to 358,952.48, 495,357.74 and 197,813.30

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Solution

The fourth proportional to 358,952.48, 495,357.74 and 197,813.30 is: 272,984.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,952.48 : 495,357.74 = 197,813.30 : x
  2. Step 2: Convert to fraction form
    358,952.48/495,357.74 = 197,813.30/x
  3. Step 3: Cross multiply
    358,952.48x = 495,357.74 × 197,813.30
  4. Step 4: Simplify right side
    358,952.48x = 97,988,349,229.94
  5. Step 5: Solve for x
    x = 97,988,349,229.94/358,952.48
  6. Step 6: Final answer
    x = 272,984.18

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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.