Home / 879,724.40-1,213,986.58-497,759.44

Finding the Fourth Proportional to 879,724.40, 1,213,986.58 and 497,759.44

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Solution

The fourth proportional to 879,724.40, 1,213,986.58 and 497,759.44 is: 686,889.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,724.40 : 1,213,986.58 = 497,759.44 : x
  2. Step 2: Convert to fraction form
    879,724.40/1,213,986.58 = 497,759.44/x
  3. Step 3: Cross multiply
    879,724.40x = 1,213,986.58 × 497,759.44
  4. Step 4: Simplify right side
    879,724.40x = 604,273,280,228.32
  5. Step 5: Solve for x
    x = 604,273,280,228.32/879,724.40
  6. Step 6: Final answer
    x = 686,889.30

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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.