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Finding the Fourth Proportional to 651,409.20, 976,336.20 and 335,703.60

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Solution

The fourth proportional to 651,409.20, 976,336.20 and 335,703.60 is: 503,154.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,409.20 : 976,336.20 = 335,703.60 : x
  2. Step 2: Convert to fraction form
    651,409.20/976,336.20 = 335,703.60/x
  3. Step 3: Cross multiply
    651,409.20x = 976,336.20 × 335,703.60
  4. Step 4: Simplify right side
    651,409.20x = 327,759,577,150.32
  5. Step 5: Solve for x
    x = 327,759,577,150.32/651,409.20
  6. Step 6: Final answer
    x = 503,154.66

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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.