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Finding the Fourth Proportional to 673,483.32, 929,428.70 and 383,087.39

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Solution

The fourth proportional to 673,483.32, 929,428.70 and 383,087.39 is: 528,672.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,483.32 : 929,428.70 = 383,087.39 : x
  2. Step 2: Convert to fraction form
    673,483.32/929,428.70 = 383,087.39/x
  3. Step 3: Cross multiply
    673,483.32x = 929,428.70 × 383,087.39
  4. Step 4: Simplify right side
    673,483.32x = 356,052,408,311.51
  5. Step 5: Solve for x
    x = 356,052,408,311.51/673,483.32
  6. Step 6: Final answer
    x = 528,672.94

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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.