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Finding the Fourth Proportional to 401,095.60, 553,365.48 and 239,955.28

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Solution

The fourth proportional to 401,095.60, 553,365.48 and 239,955.28 is: 331,050.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,095.60 : 553,365.48 = 239,955.28 : x
  2. Step 2: Convert to fraction form
    401,095.60/553,365.48 = 239,955.28/x
  3. Step 3: Cross multiply
    401,095.60x = 553,365.48 × 239,955.28
  4. Step 4: Simplify right side
    401,095.60x = 132,782,968,695.73
  5. Step 5: Solve for x
    x = 132,782,968,695.73/401,095.60
  6. Step 6: Final answer
    x = 331,050.67

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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.