Home / 811,777.66-1,119,336.42-607,172.88

Finding the Fourth Proportional to 811,777.66, 1,119,336.42 and 607,172.88

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Solution

The fourth proportional to 811,777.66, 1,119,336.42 and 607,172.88 is: 837,212.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,777.66 : 1,119,336.42 = 607,172.88 : x
  2. Step 2: Convert to fraction form
    811,777.66/1,119,336.42 = 607,172.88/x
  3. Step 3: Cross multiply
    811,777.66x = 1,119,336.42 × 607,172.88
  4. Step 4: Simplify right side
    811,777.66x = 679,630,717,820.29
  5. Step 5: Solve for x
    x = 679,630,717,820.29/811,777.66
  6. Step 6: Final answer
    x = 837,212.89

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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.