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Finding the Fourth Proportional to 670,334, 924,964.72 and 394,527.92

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Solution

The fourth proportional to 670,334, 924,964.72 and 394,527.92 is: 544,391.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,334 : 924,964.72 = 394,527.92 : x
  2. Step 2: Convert to fraction form
    670,334/924,964.72 = 394,527.92/x
  3. Step 3: Cross multiply
    670,334x = 924,964.72 × 394,527.92
  4. Step 4: Simplify right side
    670,334x = 364,924,407,054.98
  5. Step 5: Solve for x
    x = 364,924,407,054.98/670,334
  6. Step 6: Final answer
    x = 544,391.91

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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.