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Finding the Fourth Proportional to 474,572.40, 654,808.48 and 281,040.92

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Solution

The fourth proportional to 474,572.40, 654,808.48 and 281,040.92 is: 387,776.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,572.40 : 654,808.48 = 281,040.92 : x
  2. Step 2: Convert to fraction form
    474,572.40/654,808.48 = 281,040.92/x
  3. Step 3: Cross multiply
    474,572.40x = 654,808.48 × 281,040.92
  4. Step 4: Simplify right side
    474,572.40x = 184,027,977,643.00
  5. Step 5: Solve for x
    x = 184,027,977,643.00/474,572.40
  6. Step 6: Final answer
    x = 387,776.40

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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.