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Finding the Fourth Proportional to 634,618.09, 875,767.86 and 344,228.93

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Solution

The fourth proportional to 634,618.09, 875,767.86 and 344,228.93 is: 475,033.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,618.09 : 875,767.86 = 344,228.93 : x
  2. Step 2: Convert to fraction form
    634,618.09/875,767.86 = 344,228.93/x
  3. Step 3: Cross multiply
    634,618.09x = 875,767.86 × 344,228.93
  4. Step 4: Simplify right side
    634,618.09x = 301,464,634,274.75
  5. Step 5: Solve for x
    x = 301,464,634,274.75/634,618.09
  6. Step 6: Final answer
    x = 475,033.16

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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.