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Finding the Fourth Proportional to 626,712.38, 864,873.60 and 340,232.48

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Solution

The fourth proportional to 626,712.38, 864,873.60 and 340,232.48 is: 469,526.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,712.38 : 864,873.60 = 340,232.48 : x
  2. Step 2: Convert to fraction form
    626,712.38/864,873.60 = 340,232.48/x
  3. Step 3: Cross multiply
    626,712.38x = 864,873.60 × 340,232.48
  4. Step 4: Simplify right side
    626,712.38x = 294,258,089,814.53
  5. Step 5: Solve for x
    x = 294,258,089,814.53/626,712.38
  6. Step 6: Final answer
    x = 469,526.53

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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.