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Finding the Fourth Proportional to 584,432.75, 806,509.30 and 326,313.67

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Solution

The fourth proportional to 584,432.75, 806,509.30 and 326,313.67 is: 450,308.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,432.75 : 806,509.30 = 326,313.67 : x
  2. Step 2: Convert to fraction form
    584,432.75/806,509.30 = 326,313.67/x
  3. Step 3: Cross multiply
    584,432.75x = 806,509.30 × 326,313.67
  4. Step 4: Simplify right side
    584,432.75x = 263,175,007,975.34
  5. Step 5: Solve for x
    x = 263,175,007,975.34/584,432.75
  6. Step 6: Final answer
    x = 450,308.46

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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.