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Finding the Fourth Proportional to 407,281.92, 562,047.36 and 248,305.92

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Solution

The fourth proportional to 407,281.92, 562,047.36 and 248,305.92 is: 342,661.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,281.92 : 562,047.36 = 248,305.92 : x
  2. Step 2: Convert to fraction form
    407,281.92/562,047.36 = 248,305.92/x
  3. Step 3: Cross multiply
    407,281.92x = 562,047.36 × 248,305.92
  4. Step 4: Simplify right side
    407,281.92x = 139,559,686,808.37
  5. Step 5: Solve for x
    x = 139,559,686,808.37/407,281.92
  6. Step 6: Final answer
    x = 342,661.14

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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.