Home / 685,994.73-1,024,098.11-640,406.96

Finding the Fourth Proportional to 685,994.73, 1,024,098.11 and 640,406.96

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Solution

The fourth proportional to 685,994.73, 1,024,098.11 and 640,406.96 is: 956,041.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,994.73 : 1,024,098.11 = 640,406.96 : x
  2. Step 2: Convert to fraction form
    685,994.73/1,024,098.11 = 640,406.96/x
  3. Step 3: Cross multiply
    685,994.73x = 1,024,098.11 × 640,406.96
  4. Step 4: Simplify right side
    685,994.73x = 655,839,549,044.32
  5. Step 5: Solve for x
    x = 655,839,549,044.32/685,994.73
  6. Step 6: Final answer
    x = 956,041.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.