Home / 1,221,190.15-1,685,444.14-677,501.10

Finding the Fourth Proportional to 1,221,190.15, 1,685,444.14 and 677,501.10

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Solution

The fourth proportional to 1,221,190.15, 1,685,444.14 and 677,501.10 is: 935,063.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,190.15 : 1,685,444.14 = 677,501.10 : x
  2. Step 2: Convert to fraction form
    1,221,190.15/1,685,444.14 = 677,501.10/x
  3. Step 3: Cross multiply
    1,221,190.15x = 1,685,444.14 × 677,501.10
  4. Step 4: Simplify right side
    1,221,190.15x = 1,141,890,258,838.55
  5. Step 5: Solve for x
    x = 1,141,890,258,838.55/1,221,190.15
  6. Step 6: Final answer
    x = 935,063.44

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Double scale
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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.