Home / 890,953.40-1,336,559.70-291,812.60

Finding the Fourth Proportional to 890,953.40, 1,336,559.70 and 291,812.60

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Solution

The fourth proportional to 890,953.40, 1,336,559.70 and 291,812.60 is: 437,761.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,953.40 : 1,336,559.70 = 291,812.60 : x
  2. Step 2: Convert to fraction form
    890,953.40/1,336,559.70 = 291,812.60/x
  3. Step 3: Cross multiply
    890,953.40x = 1,336,559.70 × 291,812.60
  4. Step 4: Simplify right side
    890,953.40x = 390,024,961,112.22
  5. Step 5: Solve for x
    x = 390,024,961,112.22/890,953.40
  6. Step 6: Final answer
    x = 437,761.35

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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.