Home / 637,734.83-880,040.84-396,012.21

Finding the Fourth Proportional to 637,734.83, 880,040.84 and 396,012.21

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Solution

The fourth proportional to 637,734.83, 880,040.84 and 396,012.21 is: 546,476.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,734.83 : 880,040.84 = 396,012.21 : x
  2. Step 2: Convert to fraction form
    637,734.83/880,040.84 = 396,012.21/x
  3. Step 3: Cross multiply
    637,734.83x = 880,040.84 × 396,012.21
  4. Step 4: Simplify right side
    637,734.83x = 348,506,918,474.91
  5. Step 5: Solve for x
    x = 348,506,918,474.91/637,734.83
  6. Step 6: Final answer
    x = 546,476.22

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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.