Home / 816,686.85-1,225,279.49-417,607.95

Finding the Fourth Proportional to 816,686.85, 1,225,279.49 and 417,607.95

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Solution

The fourth proportional to 816,686.85, 1,225,279.49 and 417,607.95 is: 626,539.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,686.85 : 1,225,279.49 = 417,607.95 : x
  2. Step 2: Convert to fraction form
    816,686.85/1,225,279.49 = 417,607.95/x
  3. Step 3: Cross multiply
    816,686.85x = 1,225,279.49 × 417,607.95
  4. Step 4: Simplify right side
    816,686.85x = 511,686,455,995.95
  5. Step 5: Solve for x
    x = 511,686,455,995.95/816,686.85
  6. Step 6: Final answer
    x = 626,539.36

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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.