Home / 637,612.75-879,892.23-351,135.19

Finding the Fourth Proportional to 637,612.75, 879,892.23 and 351,135.19

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Solution

The fourth proportional to 637,612.75, 879,892.23 and 351,135.19 is: 484,559.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,612.75 : 879,892.23 = 351,135.19 : x
  2. Step 2: Convert to fraction form
    637,612.75/879,892.23 = 351,135.19/x
  3. Step 3: Cross multiply
    637,612.75x = 879,892.23 × 351,135.19
  4. Step 4: Simplify right side
    637,612.75x = 308,961,125,360.57
  5. Step 5: Solve for x
    x = 308,961,125,360.57/637,612.75
  6. Step 6: Final answer
    x = 484,559.20

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Double scale
Find fourth proportional to 637,613.75, 879,893.61 and 351,136.19
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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.