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Finding the Fourth Proportional to 561,202.76, 774,714.71 and 357,532.94

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Solution

The fourth proportional to 561,202.76, 774,714.71 and 357,532.94 is: 493,557.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,202.76 : 774,714.71 = 357,532.94 : x
  2. Step 2: Convert to fraction form
    561,202.76/774,714.71 = 357,532.94/x
  3. Step 3: Cross multiply
    561,202.76x = 774,714.71 × 357,532.94
  4. Step 4: Simplify right side
    561,202.76x = 276,986,026,139.88
  5. Step 5: Solve for x
    x = 276,986,026,139.88/561,202.76
  6. Step 6: Final answer
    x = 493,557.85

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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.