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Finding the Fourth Proportional to 693,238.50, 956,505.15 and 402,677.46

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Solution

The fourth proportional to 693,238.50, 956,505.15 and 402,677.46 is: 555,599.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,238.50 : 956,505.15 = 402,677.46 : x
  2. Step 2: Convert to fraction form
    693,238.50/956,505.15 = 402,677.46/x
  3. Step 3: Cross multiply
    693,238.50x = 956,505.15 × 402,677.46
  4. Step 4: Simplify right side
    693,238.50x = 385,163,064,278.92
  5. Step 5: Solve for x
    x = 385,163,064,278.92/693,238.50
  6. Step 6: Final answer
    x = 555,599.64

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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.