Home / 1,209,284.58-1,668,810.78-665,455.44

Finding the Fourth Proportional to 1,209,284.58, 1,668,810.78 and 665,455.44

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Solution

The fourth proportional to 1,209,284.58, 1,668,810.78 and 665,455.44 is: 918,327.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,284.58 : 1,668,810.78 = 665,455.44 : x
  2. Step 2: Convert to fraction form
    1,209,284.58/1,668,810.78 = 665,455.44/x
  3. Step 3: Cross multiply
    1,209,284.58x = 1,668,810.78 × 665,455.44
  4. Step 4: Simplify right side
    1,209,284.58x = 1,110,519,211,881.64
  5. Step 5: Solve for x
    x = 1,110,519,211,881.64/1,209,284.58
  6. Step 6: Final answer
    x = 918,327.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.