Home / 686,895.42-947,972.31-381,070.26

Finding the Fourth Proportional to 686,895.42, 947,972.31 and 381,070.26

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Solution

The fourth proportional to 686,895.42, 947,972.31 and 381,070.26 is: 525,908.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,895.42 : 947,972.31 = 381,070.26 : x
  2. Step 2: Convert to fraction form
    686,895.42/947,972.31 = 381,070.26/x
  3. Step 3: Cross multiply
    686,895.42x = 947,972.31 × 381,070.26
  4. Step 4: Simplify right side
    686,895.42x = 361,244,054,644.50
  5. Step 5: Solve for x
    x = 361,244,054,644.50/686,895.42
  6. Step 6: Final answer
    x = 525,908.38

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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.