Home / 916,347.21-1,373,968.40-410,816.76

Finding the Fourth Proportional to 916,347.21, 1,373,968.40 and 410,816.76

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Solution

The fourth proportional to 916,347.21, 1,373,968.40 and 410,816.76 is: 615,977.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,347.21 : 1,373,968.40 = 410,816.76 : x
  2. Step 2: Convert to fraction form
    916,347.21/1,373,968.40 = 410,816.76/x
  3. Step 3: Cross multiply
    916,347.21x = 1,373,968.40 × 410,816.76
  4. Step 4: Simplify right side
    916,347.21x = 564,449,244,376.30
  5. Step 5: Solve for x
    x = 564,449,244,376.30/916,347.21
  6. Step 6: Final answer
    x = 615,977.48

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1.5x scale

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.