Home / 628,707.47-867,616.41-342,227.53

Finding the Fourth Proportional to 628,707.47, 867,616.41 and 342,227.53

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Solution

The fourth proportional to 628,707.47, 867,616.41 and 342,227.53 is: 472,274.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,707.47 : 867,616.41 = 342,227.53 : x
  2. Step 2: Convert to fraction form
    628,707.47/867,616.41 = 342,227.53/x
  3. Step 3: Cross multiply
    628,707.47x = 867,616.41 × 342,227.53
  4. Step 4: Simplify right side
    628,707.47x = 296,922,223,349.64
  5. Step 5: Solve for x
    x = 296,922,223,349.64/628,707.47
  6. Step 6: Final answer
    x = 472,274.05

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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.