Home / 688,558.45-1,032,836.88-239,279.36

Finding the Fourth Proportional to 688,558.45, 1,032,836.88 and 239,279.36

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Solution

The fourth proportional to 688,558.45, 1,032,836.88 and 239,279.36 is: 358,918.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,558.45 : 1,032,836.88 = 239,279.36 : x
  2. Step 2: Convert to fraction form
    688,558.45/1,032,836.88 = 239,279.36/x
  3. Step 3: Cross multiply
    688,558.45x = 1,032,836.88 × 239,279.36
  4. Step 4: Simplify right side
    688,558.45x = 247,136,541,270.22
  5. Step 5: Solve for x
    x = 247,136,541,270.22/688,558.45
  6. Step 6: Final answer
    x = 358,918.76

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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.