Home / 856,903.14-1,285,534.53-257,908.14

Finding the Fourth Proportional to 856,903.14, 1,285,534.53 and 257,908.14

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Solution

The fourth proportional to 856,903.14, 1,285,534.53 and 257,908.14 is: 386,916.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,903.14 : 1,285,534.53 = 257,908.14 : x
  2. Step 2: Convert to fraction form
    856,903.14/1,285,534.53 = 257,908.14/x
  3. Step 3: Cross multiply
    856,903.14x = 1,285,534.53 × 257,908.14
  4. Step 4: Simplify right side
    856,903.14x = 331,549,819,538.07
  5. Step 5: Solve for x
    x = 331,549,819,538.07/856,903.14
  6. Step 6: Final answer
    x = 386,916.33

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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.