Home / 934,900.19-1,290,162.23-505,180.30

Finding the Fourth Proportional to 934,900.19, 1,290,162.23 and 505,180.30

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Solution

The fourth proportional to 934,900.19, 1,290,162.23 and 505,180.30 is: 697,148.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    934,900.19 : 1,290,162.23 = 505,180.30 : x
  2. Step 2: Convert to fraction form
    934,900.19/1,290,162.23 = 505,180.30/x
  3. Step 3: Cross multiply
    934,900.19x = 1,290,162.23 × 505,180.30
  4. Step 4: Simplify right side
    934,900.19x = 651,764,543,381.30
  5. Step 5: Solve for x
    x = 651,764,543,381.30/934,900.19
  6. Step 6: Final answer
    x = 697,148.80

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Double scale
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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.