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Finding the Fourth Proportional to 358,901.70, 495,290.22 and 197,754.42

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Solution

The fourth proportional to 358,901.70, 495,290.22 and 197,754.42 is: 272,904.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,901.70 : 495,290.22 = 197,754.42 : x
  2. Step 2: Convert to fraction form
    358,901.70/495,290.22 = 197,754.42/x
  3. Step 3: Cross multiply
    358,901.70x = 495,290.22 × 197,754.42
  4. Step 4: Simplify right side
    358,901.70x = 97,945,830,187.77
  5. Step 5: Solve for x
    x = 97,945,830,187.77/358,901.70
  6. Step 6: Final answer
    x = 272,904.34

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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.