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Finding the Fourth Proportional to 683,612.21, 943,394.72 and 377,695.67

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Solution

The fourth proportional to 683,612.21, 943,394.72 and 377,695.67 is: 521,225.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,612.21 : 943,394.72 = 377,695.67 : x
  2. Step 2: Convert to fraction form
    683,612.21/943,394.72 = 377,695.67/x
  3. Step 3: Cross multiply
    683,612.21x = 943,394.72 × 377,695.67
  4. Step 4: Simplify right side
    683,612.21x = 356,316,094,239.41
  5. Step 5: Solve for x
    x = 356,316,094,239.41/683,612.21
  6. Step 6: Final answer
    x = 521,225.47

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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.