Home / 808,130.80-1,211,418.60-628,116.40

Finding the Fourth Proportional to 808,130.80, 1,211,418.60 and 628,116.40

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Solution

The fourth proportional to 808,130.80, 1,211,418.60 and 628,116.40 is: 941,570.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,130.80 : 1,211,418.60 = 628,116.40 : x
  2. Step 2: Convert to fraction form
    808,130.80/1,211,418.60 = 628,116.40/x
  3. Step 3: Cross multiply
    808,130.80x = 1,211,418.60 × 628,116.40
  4. Step 4: Simplify right side
    808,130.80x = 760,911,889,925.04
  5. Step 5: Solve for x
    x = 760,911,889,925.04/808,130.80
  6. Step 6: Final answer
    x = 941,570.21

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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.