Home / 877,193.10-1,315,789.65-212,345.10

Finding the Fourth Proportional to 877,193.10, 1,315,789.65 and 212,345.10

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Solution

The fourth proportional to 877,193.10, 1,315,789.65 and 212,345.10 is: 318,517.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,193.10 : 1,315,789.65 = 212,345.10 : x
  2. Step 2: Convert to fraction form
    877,193.10/1,315,789.65 = 212,345.10/x
  3. Step 3: Cross multiply
    877,193.10x = 1,315,789.65 × 212,345.10
  4. Step 4: Simplify right side
    877,193.10x = 279,401,484,808.22
  5. Step 5: Solve for x
    x = 279,401,484,808.22/877,193.10
  6. Step 6: Final answer
    x = 318,517.65

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Half scale
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Double scale
Find fourth proportional to 877,194.10, 1,315,791.15 and 212,346.10
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.