Home / 677,896.61-935,466.05-371,965.55

Finding the Fourth Proportional to 677,896.61, 935,466.05 and 371,965.55

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Solution

The fourth proportional to 677,896.61, 935,466.05 and 371,965.55 is: 513,295.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,896.61 : 935,466.05 = 371,965.55 : x
  2. Step 2: Convert to fraction form
    677,896.61/935,466.05 = 371,965.55/x
  3. Step 3: Cross multiply
    677,896.61x = 935,466.05 × 371,965.55
  4. Step 4: Simplify right side
    677,896.61x = 347,961,140,047.16
  5. Step 5: Solve for x
    x = 347,961,140,047.16/677,896.61
  6. Step 6: Final answer
    x = 513,295.30

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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.