Home / 1,039,235.80-1,558,853.70-638,577.40

Finding the Fourth Proportional to 1,039,235.80, 1,558,853.70 and 638,577.40

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Solution

The fourth proportional to 1,039,235.80, 1,558,853.70 and 638,577.40 is: 957,866.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,235.80 : 1,558,853.70 = 638,577.40 : x
  2. Step 2: Convert to fraction form
    1,039,235.80/1,558,853.70 = 638,577.40/x
  3. Step 3: Cross multiply
    1,039,235.80x = 1,558,853.70 × 638,577.40
  4. Step 4: Simplify right side
    1,039,235.80x = 995,448,742,726.38
  5. Step 5: Solve for x
    x = 995,448,742,726.38/1,039,235.80
  6. Step 6: Final answer
    x = 957,866.10

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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.