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Finding the Fourth Proportional to 637,718.75, 880,113.97 and 476,293.51

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Solution

The fourth proportional to 637,718.75, 880,113.97 and 476,293.51 is: 657,331.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,718.75 : 880,113.97 = 476,293.51 : x
  2. Step 2: Convert to fraction form
    637,718.75/880,113.97 = 476,293.51/x
  3. Step 3: Cross multiply
    637,718.75x = 880,113.97 × 476,293.51
  4. Step 4: Simplify right side
    637,718.75x = 419,192,571,971.34
  5. Step 5: Solve for x
    x = 419,192,571,971.34/637,718.75
  6. Step 6: Final answer
    x = 657,331.42

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Double scale
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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.