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Finding the Fourth Proportional to 677,868, 935,457.84 and 376,064.16

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Solution

The fourth proportional to 677,868, 935,457.84 and 376,064.16 is: 518,968.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,868 : 935,457.84 = 376,064.16 : x
  2. Step 2: Convert to fraction form
    677,868/935,457.84 = 376,064.16/x
  3. Step 3: Cross multiply
    677,868x = 935,457.84 × 376,064.16
  4. Step 4: Simplify right side
    677,868x = 351,792,166,815.01
  5. Step 5: Solve for x
    x = 351,792,166,815.01/677,868
  6. Step 6: Final answer
    x = 518,968.54

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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.