Home / 1,221,329.39-1,685,461.57-677,447.46

Finding the Fourth Proportional to 1,221,329.39, 1,685,461.57 and 677,447.46

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Solution

The fourth proportional to 1,221,329.39, 1,685,461.57 and 677,447.46 is: 934,892.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,329.39 : 1,685,461.57 = 677,447.46 : x
  2. Step 2: Convert to fraction form
    1,221,329.39/1,685,461.57 = 677,447.46/x
  3. Step 3: Cross multiply
    1,221,329.39x = 1,685,461.57 × 677,447.46
  4. Step 4: Simplify right side
    1,221,329.39x = 1,141,811,657,830.49
  5. Step 5: Solve for x
    x = 1,141,811,657,830.49/1,221,329.39
  6. Step 6: Final answer
    x = 934,892.48

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.