Home / 657,125.64-985,688.46-257,954.40

Finding the Fourth Proportional to 657,125.64, 985,688.46 and 257,954.40

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Solution

The fourth proportional to 657,125.64, 985,688.46 and 257,954.40 is: 386,931.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,125.64 : 985,688.46 = 257,954.40 : x
  2. Step 2: Convert to fraction form
    657,125.64/985,688.46 = 257,954.40/x
  3. Step 3: Cross multiply
    657,125.64x = 985,688.46 × 257,954.40
  4. Step 4: Simplify right side
    657,125.64x = 254,262,675,286.22
  5. Step 5: Solve for x
    x = 254,262,675,286.22/657,125.64
  6. Step 6: Final answer
    x = 386,931.60

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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.