Home / 874,294.15-1,311,441.23-519,125.35

Finding the Fourth Proportional to 874,294.15, 1,311,441.23 and 519,125.35

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Solution

The fourth proportional to 874,294.15, 1,311,441.23 and 519,125.35 is: 778,688.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,294.15 : 1,311,441.23 = 519,125.35 : x
  2. Step 2: Convert to fraction form
    874,294.15/1,311,441.23 = 519,125.35/x
  3. Step 3: Cross multiply
    874,294.15x = 1,311,441.23 × 519,125.35
  4. Step 4: Simplify right side
    874,294.15x = 680,802,384,932.55
  5. Step 5: Solve for x
    x = 680,802,384,932.55/874,294.15
  6. Step 6: Final answer
    x = 778,688.03

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.