Home / 771,310.80-1,156,966.20-519,368.40

Finding the Fourth Proportional to 771,310.80, 1,156,966.20 and 519,368.40

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Solution

The fourth proportional to 771,310.80, 1,156,966.20 and 519,368.40 is: 779,052.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,310.80 : 1,156,966.20 = 519,368.40 : x
  2. Step 2: Convert to fraction form
    771,310.80/1,156,966.20 = 519,368.40/x
  3. Step 3: Cross multiply
    771,310.80x = 1,156,966.20 × 519,368.40
  4. Step 4: Simplify right side
    771,310.80x = 600,891,684,148.08
  5. Step 5: Solve for x
    x = 600,891,684,148.08/771,310.80
  6. Step 6: Final answer
    x = 779,052.60

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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.