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Finding the Fourth Proportional to 298,590.60, 412,047.90 and 171,258.06

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Solution

The fourth proportional to 298,590.60, 412,047.90 and 171,258.06 is: 236,332.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,590.60 : 412,047.90 = 171,258.06 : x
  2. Step 2: Convert to fraction form
    298,590.60/412,047.90 = 171,258.06/x
  3. Step 3: Cross multiply
    298,590.60x = 412,047.90 × 171,258.06
  4. Step 4: Simplify right side
    298,590.60x = 70,566,523,981.07
  5. Step 5: Solve for x
    x = 70,566,523,981.07/298,590.60
  6. Step 6: Final answer
    x = 236,332.03

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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.