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Finding the Fourth Proportional to 310,953.60, 429,105.60 and 174,990.24

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Solution

The fourth proportional to 310,953.60, 429,105.60 and 174,990.24 is: 241,480.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,953.60 : 429,105.60 = 174,990.24 : x
  2. Step 2: Convert to fraction form
    310,953.60/429,105.60 = 174,990.24/x
  3. Step 3: Cross multiply
    310,953.60x = 429,105.60 × 174,990.24
  4. Step 4: Simplify right side
    310,953.60x = 75,089,291,929.34
  5. Step 5: Solve for x
    x = 75,089,291,929.34/310,953.60
  6. Step 6: Final answer
    x = 241,480.70

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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.