Home / 771,611.84-1,064,824.15-427,470.11

Finding the Fourth Proportional to 771,611.84, 1,064,824.15 and 427,470.11

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Solution

The fourth proportional to 771,611.84, 1,064,824.15 and 427,470.11 is: 589,908.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,611.84 : 1,064,824.15 = 427,470.11 : x
  2. Step 2: Convert to fraction form
    771,611.84/1,064,824.15 = 427,470.11/x
  3. Step 3: Cross multiply
    771,611.84x = 1,064,824.15 × 427,470.11
  4. Step 4: Simplify right side
    771,611.84x = 455,180,500,627.44
  5. Step 5: Solve for x
    x = 455,180,500,627.44/771,611.84
  6. Step 6: Final answer
    x = 589,908.65

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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.