Home / 646,932.62-892,746.46-405,345.67

Finding the Fourth Proportional to 646,932.62, 892,746.46 and 405,345.67

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Solution

The fourth proportional to 646,932.62, 892,746.46 and 405,345.67 is: 559,364.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,932.62 : 892,746.46 = 405,345.67 : x
  2. Step 2: Convert to fraction form
    646,932.62/892,746.46 = 405,345.67/x
  3. Step 3: Cross multiply
    646,932.62x = 892,746.46 × 405,345.67
  4. Step 4: Simplify right side
    646,932.62x = 361,870,910,243.64
  5. Step 5: Solve for x
    x = 361,870,910,243.64/646,932.62
  6. Step 6: Final answer
    x = 559,364.14

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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.