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Finding the Fourth Proportional to 468,411.39, 646,407.54 and 253,553.22

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Solution

The fourth proportional to 468,411.39, 646,407.54 and 253,553.22 is: 349,903.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,411.39 : 646,407.54 = 253,553.22 : x
  2. Step 2: Convert to fraction form
    468,411.39/646,407.54 = 253,553.22/x
  3. Step 3: Cross multiply
    468,411.39x = 646,407.54 × 253,553.22
  4. Step 4: Simplify right side
    468,411.39x = 163,898,713,199.28
  5. Step 5: Solve for x
    x = 163,898,713,199.28/468,411.39
  6. Step 6: Final answer
    x = 349,903.35

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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.