Home / 771,613.56-1,065,106.14-628,124.52

Finding the Fourth Proportional to 771,613.56, 1,065,106.14 and 628,124.52

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Solution

The fourth proportional to 771,613.56, 1,065,106.14 and 628,124.52 is: 867,039.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,613.56 : 1,065,106.14 = 628,124.52 : x
  2. Step 2: Convert to fraction form
    771,613.56/1,065,106.14 = 628,124.52/x
  3. Step 3: Cross multiply
    771,613.56x = 1,065,106.14 × 628,124.52
  4. Step 4: Simplify right side
    771,613.56x = 669,019,282,936.55
  5. Step 5: Solve for x
    x = 669,019,282,936.55/771,613.56
  6. Step 6: Final answer
    x = 867,039.30

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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.