Home / 783,412.02-1,080,710.64-511,639.00

Finding the Fourth Proportional to 783,412.02, 1,080,710.64 and 511,639.00

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Solution

The fourth proportional to 783,412.02, 1,080,710.64 and 511,639.00 is: 705,801.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,412.02 : 1,080,710.64 = 511,639.00 : x
  2. Step 2: Convert to fraction form
    783,412.02/1,080,710.64 = 511,639.00/x
  3. Step 3: Cross multiply
    783,412.02x = 1,080,710.64 × 511,639.00
  4. Step 4: Simplify right side
    783,412.02x = 552,933,708,437.18
  5. Step 5: Solve for x
    x = 552,933,708,437.18/783,412.02
  6. Step 6: Final answer
    x = 705,801.92

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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.