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Finding the Fourth Proportional to 573,355.84, 790,402.32 and 379,438.69

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Solution

The fourth proportional to 573,355.84, 790,402.32 and 379,438.69 is: 523,076.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,355.84 : 790,402.32 = 379,438.69 : x
  2. Step 2: Convert to fraction form
    573,355.84/790,402.32 = 379,438.69/x
  3. Step 3: Cross multiply
    573,355.84x = 790,402.32 × 379,438.69
  4. Step 4: Simplify right side
    573,355.84x = 299,909,223,192.07
  5. Step 5: Solve for x
    x = 299,909,223,192.07/573,355.84
  6. Step 6: Final answer
    x = 523,076.95

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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.