Home / 1,122,570.82-1,549,219.08-639,178.18

Finding the Fourth Proportional to 1,122,570.82, 1,549,219.08 and 639,178.18

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Solution

The fourth proportional to 1,122,570.82, 1,549,219.08 and 639,178.18 is: 882,106.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,570.82 : 1,549,219.08 = 639,178.18 : x
  2. Step 2: Convert to fraction form
    1,122,570.82/1,549,219.08 = 639,178.18/x
  3. Step 3: Cross multiply
    1,122,570.82x = 1,549,219.08 × 639,178.18
  4. Step 4: Simplify right side
    1,122,570.82x = 990,227,031,975.68
  5. Step 5: Solve for x
    x = 990,227,031,975.68/1,122,570.82
  6. Step 6: Final answer
    x = 882,106.51

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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.