Home / 312,004.35-430,564.86-168,764.40

Finding the Fourth Proportional to 312,004.35, 430,564.86 and 168,764.40

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Solution

The fourth proportional to 312,004.35, 430,564.86 and 168,764.40 is: 232,894.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,004.35 : 430,564.86 = 168,764.40 : x
  2. Step 2: Convert to fraction form
    312,004.35/430,564.86 = 168,764.40/x
  3. Step 3: Cross multiply
    312,004.35x = 430,564.86 × 168,764.40
  4. Step 4: Simplify right side
    312,004.35x = 72,664,020,258.98
  5. Step 5: Solve for x
    x = 72,664,020,258.98/312,004.35
  6. Step 6: Final answer
    x = 232,894.25

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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.