Home / 688,681.88-1,032,431.18-239,344.37

Finding the Fourth Proportional to 688,681.88, 1,032,431.18 and 239,344.37

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Solution

The fourth proportional to 688,681.88, 1,032,431.18 and 239,344.37 is: 358,810.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,681.88 : 1,032,431.18 = 239,344.37 : x
  2. Step 2: Convert to fraction form
    688,681.88/1,032,431.18 = 239,344.37/x
  3. Step 3: Cross multiply
    688,681.88x = 1,032,431.18 × 239,344.37
  4. Step 4: Simplify right side
    688,681.88x = 247,106,583,986.58
  5. Step 5: Solve for x
    x = 247,106,583,986.58/688,681.88
  6. Step 6: Final answer
    x = 358,810.93

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Half scale
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Double scale
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Similar ratio
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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.