Home / 783,403.55-1,175,105.34-517,101.77

Finding the Fourth Proportional to 783,403.55, 1,175,105.34 and 517,101.77

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Solution

The fourth proportional to 783,403.55, 1,175,105.34 and 517,101.77 is: 775,652.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,403.55 : 1,175,105.34 = 517,101.77 : x
  2. Step 2: Convert to fraction form
    783,403.55/1,175,105.34 = 517,101.77/x
  3. Step 3: Cross multiply
    783,403.55x = 1,175,105.34 × 517,101.77
  4. Step 4: Simplify right side
    783,403.55x = 607,649,054,188.22
  5. Step 5: Solve for x
    x = 607,649,054,188.22/783,403.55
  6. Step 6: Final answer
    x = 775,652.67

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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.