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Finding the Fourth Proportional to 710,892.86, 980,738.40 and 496,158.62

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Solution

The fourth proportional to 710,892.86, 980,738.40 and 496,158.62 is: 684,493.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,892.86 : 980,738.40 = 496,158.62 : x
  2. Step 2: Convert to fraction form
    710,892.86/980,738.40 = 496,158.62/x
  3. Step 3: Cross multiply
    710,892.86x = 980,738.40 × 496,158.62
  4. Step 4: Simplify right side
    710,892.86x = 486,601,806,221.32
  5. Step 5: Solve for x
    x = 486,601,806,221.32/710,892.86
  6. Step 6: Final answer
    x = 684,493.88

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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.