Home / 1,129,574.39-1,558,794.89-620,276.76

Finding the Fourth Proportional to 1,129,574.39, 1,558,794.89 and 620,276.76

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Solution

The fourth proportional to 1,129,574.39, 1,558,794.89 and 620,276.76 is: 855,972.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,574.39 : 1,558,794.89 = 620,276.76 : x
  2. Step 2: Convert to fraction form
    1,129,574.39/1,558,794.89 = 620,276.76/x
  3. Step 3: Cross multiply
    1,129,574.39x = 1,558,794.89 × 620,276.76
  4. Step 4: Simplify right side
    1,129,574.39x = 966,884,240,772.37
  5. Step 5: Solve for x
    x = 966,884,240,772.37/1,129,574.39
  6. Step 6: Final answer
    x = 855,972.17

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Double scale
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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.