Home / 860,017.28-1,186,722.32-511,103.36

Finding the Fourth Proportional to 860,017.28, 1,186,722.32 and 511,103.36

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Solution

The fourth proportional to 860,017.28, 1,186,722.32 and 511,103.36 is: 705,262.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,017.28 : 1,186,722.32 = 511,103.36 : x
  2. Step 2: Convert to fraction form
    860,017.28/1,186,722.32 = 511,103.36/x
  3. Step 3: Cross multiply
    860,017.28x = 1,186,722.32 × 511,103.36
  4. Step 4: Simplify right side
    860,017.28x = 606,537,765,139.00
  5. Step 5: Solve for x
    x = 606,537,765,139.00/860,017.28
  6. Step 6: Final answer
    x = 705,262.30

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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.