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Finding the Fourth Proportional to 316,587.60, 474,881.40 and 291,704.40

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Solution

The fourth proportional to 316,587.60, 474,881.40 and 291,704.40 is: 437,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,587.60 : 474,881.40 = 291,704.40 : x
  2. Step 2: Convert to fraction form
    316,587.60/474,881.40 = 291,704.40/x
  3. Step 3: Cross multiply
    316,587.60x = 474,881.40 × 291,704.40
  4. Step 4: Simplify right side
    316,587.60x = 138,524,993,858.16
  5. Step 5: Solve for x
    x = 138,524,993,858.16/316,587.60
  6. Step 6: Final answer
    x = 437,556.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.