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Finding the Fourth Proportional to 557,593.31, 836,810.60 and 258,283.89

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Solution

The fourth proportional to 557,593.31, 836,810.60 and 258,283.89 is: 387,620.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,593.31 : 836,810.60 = 258,283.89 : x
  2. Step 2: Convert to fraction form
    557,593.31/836,810.60 = 258,283.89/x
  3. Step 3: Cross multiply
    557,593.31x = 836,810.60 × 258,283.89
  4. Step 4: Simplify right side
    557,593.31x = 216,134,695,669.82
  5. Step 5: Solve for x
    x = 216,134,695,669.82/557,593.31
  6. Step 6: Final answer
    x = 387,620.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.