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Finding the Fourth Proportional to 674,068.59, 930,221.01 and 383,665.98

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Solution

The fourth proportional to 674,068.59, 930,221.01 and 383,665.98 is: 529,462.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,068.59 : 930,221.01 = 383,665.98 : x
  2. Step 2: Convert to fraction form
    674,068.59/930,221.01 = 383,665.98/x
  3. Step 3: Cross multiply
    674,068.59x = 930,221.01 × 383,665.98
  4. Step 4: Simplify right side
    674,068.59x = 356,894,155,418.24
  5. Step 5: Solve for x
    x = 356,894,155,418.24/674,068.59
  6. Step 6: Final answer
    x = 529,462.67

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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.