Home / 875,785.50-1,313,670.42-276,746.76

Finding the Fourth Proportional to 875,785.50, 1,313,670.42 and 276,746.76

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Solution

The fourth proportional to 875,785.50, 1,313,670.42 and 276,746.76 is: 415,117.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,785.50 : 1,313,670.42 = 276,746.76 : x
  2. Step 2: Convert to fraction form
    875,785.50/1,313,670.42 = 276,746.76/x
  3. Step 3: Cross multiply
    875,785.50x = 1,313,670.42 × 276,746.76
  4. Step 4: Simplify right side
    875,785.50x = 363,554,032,442.84
  5. Step 5: Solve for x
    x = 363,554,032,442.84/875,785.50
  6. Step 6: Final answer
    x = 415,117.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.