Home / 498,065.60-687,389.46-283,237.94

Finding the Fourth Proportional to 498,065.60, 687,389.46 and 283,237.94

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Solution

The fourth proportional to 498,065.60, 687,389.46 and 283,237.94 is: 390,901.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,065.60 : 687,389.46 = 283,237.94 : x
  2. Step 2: Convert to fraction form
    498,065.60/687,389.46 = 283,237.94/x
  3. Step 3: Cross multiply
    498,065.60x = 687,389.46 × 283,237.94
  4. Step 4: Simplify right side
    498,065.60x = 194,694,774,628.11
  5. Step 5: Solve for x
    x = 194,694,774,628.11/498,065.60
  6. Step 6: Final answer
    x = 390,901.87

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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.