Home / 915,234.40-1,371,448.08-416,015.20

Finding the Fourth Proportional to 915,234.40, 1,371,448.08 and 416,015.20

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Solution

The fourth proportional to 915,234.40, 1,371,448.08 and 416,015.20 is: 623,384.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,234.40 : 1,371,448.08 = 416,015.20 : x
  2. Step 2: Convert to fraction form
    915,234.40/1,371,448.08 = 416,015.20/x
  3. Step 3: Cross multiply
    915,234.40x = 1,371,448.08 × 416,015.20
  4. Step 4: Simplify right side
    915,234.40x = 570,543,247,290.82
  5. Step 5: Solve for x
    x = 570,543,247,290.82/915,234.40
  6. Step 6: Final answer
    x = 623,384.84

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Double scale
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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.