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Finding the Fourth Proportional to 529,503.84, 731,676.24 and 386,013.60

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Solution

The fourth proportional to 529,503.84, 731,676.24 and 386,013.60 is: 533,399.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,503.84 : 731,676.24 = 386,013.60 : x
  2. Step 2: Convert to fraction form
    529,503.84/731,676.24 = 386,013.60/x
  3. Step 3: Cross multiply
    529,503.84x = 731,676.24 × 386,013.60
  4. Step 4: Simplify right side
    529,503.84x = 282,436,979,436.86
  5. Step 5: Solve for x
    x = 282,436,979,436.86/529,503.84
  6. Step 6: Final answer
    x = 533,399.30

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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.