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Finding the Fourth Proportional to 623,749.81, 860,785.94 and 365,812.79

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Solution

The fourth proportional to 623,749.81, 860,785.94 and 365,812.79 is: 504,828.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,749.81 : 860,785.94 = 365,812.79 : x
  2. Step 2: Convert to fraction form
    623,749.81/860,785.94 = 365,812.79/x
  3. Step 3: Cross multiply
    623,749.81x = 860,785.94 × 365,812.79
  4. Step 4: Simplify right side
    623,749.81x = 314,886,505,508.81
  5. Step 5: Solve for x
    x = 314,886,505,508.81/623,749.81
  6. Step 6: Final answer
    x = 504,828.22

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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.