Home / 678,256.40-1,015,829.40-662,704.40

Finding the Fourth Proportional to 678,256.40, 1,015,829.40 and 662,704.40

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Solution

The fourth proportional to 678,256.40, 1,015,829.40 and 662,704.40 is: 992,537.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,256.40 : 1,015,829.40 = 662,704.40 : x
  2. Step 2: Convert to fraction form
    678,256.40/1,015,829.40 = 662,704.40/x
  3. Step 3: Cross multiply
    678,256.40x = 1,015,829.40 × 662,704.40
  4. Step 4: Simplify right side
    678,256.40x = 673,194,613,029.36
  5. Step 5: Solve for x
    x = 673,194,613,029.36/678,256.40
  6. Step 6: Final answer
    x = 992,537.06

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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.