Home / 601,941.15-830,140.74-398,200.23

Finding the Fourth Proportional to 601,941.15, 830,140.74 and 398,200.23

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Solution

The fourth proportional to 601,941.15, 830,140.74 and 398,200.23 is: 549,160.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,941.15 : 830,140.74 = 398,200.23 : x
  2. Step 2: Convert to fraction form
    601,941.15/830,140.74 = 398,200.23/x
  3. Step 3: Cross multiply
    601,941.15x = 830,140.74 × 398,200.23
  4. Step 4: Simplify right side
    601,941.15x = 330,562,233,600.37
  5. Step 5: Solve for x
    x = 330,562,233,600.37/601,941.15
  6. Step 6: Final answer
    x = 549,160.38

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Double scale
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Similar ratio
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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.