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Finding the Fourth Proportional to 359,012.30, 495,416.76 and 197,866.86

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Solution

The fourth proportional to 359,012.30, 495,416.76 and 197,866.86 is: 273,045.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,012.30 : 495,416.76 = 197,866.86 : x
  2. Step 2: Convert to fraction form
    359,012.30/495,416.76 = 197,866.86/x
  3. Step 3: Cross multiply
    359,012.30x = 495,416.76 × 197,866.86
  4. Step 4: Simplify right side
    359,012.30x = 98,026,558,692.57
  5. Step 5: Solve for x
    x = 98,026,558,692.57/359,012.30
  6. Step 6: Final answer
    x = 273,045.13

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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.