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Finding the Fourth Proportional to 706,346.37, 974,777.67 and 384,078.60

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Solution

The fourth proportional to 706,346.37, 974,777.67 and 384,078.60 is: 530,039.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,346.37 : 974,777.67 = 384,078.60 : x
  2. Step 2: Convert to fraction form
    706,346.37/974,777.67 = 384,078.60/x
  3. Step 3: Cross multiply
    706,346.37x = 974,777.67 × 384,078.60
  4. Step 4: Simplify right side
    706,346.37x = 374,391,242,804.86
  5. Step 5: Solve for x
    x = 374,391,242,804.86/706,346.37
  6. Step 6: Final answer
    x = 530,039.17

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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.