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Finding the Fourth Proportional to 634,659, 875,906.90 and 362,738.36

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Solution

The fourth proportional to 634,659, 875,906.90 and 362,738.36 is: 500,623.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,659 : 875,906.90 = 362,738.36 : x
  2. Step 2: Convert to fraction form
    634,659/875,906.90 = 362,738.36/x
  3. Step 3: Cross multiply
    634,659x = 875,906.90 × 362,738.36
  4. Step 4: Simplify right side
    634,659x = 317,725,026,225.46
  5. Step 5: Solve for x
    x = 317,725,026,225.46/634,659
  6. Step 6: Final answer
    x = 500,623.21

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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.