Home / 688,605.39-1,032,967.59-189,969.39

Finding the Fourth Proportional to 688,605.39, 1,032,967.59 and 189,969.39

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Solution

The fourth proportional to 688,605.39, 1,032,967.59 and 189,969.39 is: 284,970.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,605.39 : 1,032,967.59 = 189,969.39 : x
  2. Step 2: Convert to fraction form
    688,605.39/1,032,967.59 = 189,969.39/x
  3. Step 3: Cross multiply
    688,605.39x = 1,032,967.59 × 189,969.39
  4. Step 4: Simplify right side
    688,605.39x = 196,232,222,962.07
  5. Step 5: Solve for x
    x = 196,232,222,962.07/688,605.39
  6. Step 6: Final answer
    x = 284,970.50

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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.