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Finding the Fourth Proportional to 497,954.58, 687,235.41 and 283,126.83

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Solution

The fourth proportional to 497,954.58, 687,235.41 and 283,126.83 is: 390,748.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,954.58 : 687,235.41 = 283,126.83 : x
  2. Step 2: Convert to fraction form
    497,954.58/687,235.41 = 283,126.83/x
  3. Step 3: Cross multiply
    497,954.58x = 687,235.41 × 283,126.83
  4. Step 4: Simplify right side
    497,954.58x = 194,574,783,097.05
  5. Step 5: Solve for x
    x = 194,574,783,097.05/497,954.58
  6. Step 6: Final answer
    x = 390,748.05

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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.