Home / 621,366.32-857,477.37-349,434.13

Finding the Fourth Proportional to 621,366.32, 857,477.37 and 349,434.13

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Solution

The fourth proportional to 621,366.32, 857,477.37 and 349,434.13 is: 482,214.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,366.32 : 857,477.37 = 349,434.13 : x
  2. Step 2: Convert to fraction form
    621,366.32/857,477.37 = 349,434.13/x
  3. Step 3: Cross multiply
    621,366.32x = 857,477.37 × 349,434.13
  4. Step 4: Simplify right side
    621,366.32x = 299,631,852,746.08
  5. Step 5: Solve for x
    x = 299,631,852,746.08/621,366.32
  6. Step 6: Final answer
    x = 482,214.51

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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.