Home / 623,226.23-859,861-381,256.55

Finding the Fourth Proportional to 623,226.23, 859,861 and 381,256.55

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Solution

The fourth proportional to 623,226.23, 859,861 and 381,256.55 is: 526,017.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,226.23 : 859,861 = 381,256.55 : x
  2. Step 2: Convert to fraction form
    623,226.23/859,861 = 381,256.55/x
  3. Step 3: Cross multiply
    623,226.23x = 859,861 × 381,256.55
  4. Step 4: Simplify right side
    623,226.23x = 327,827,638,339.55
  5. Step 5: Solve for x
    x = 327,827,638,339.55/623,226.23
  6. Step 6: Final answer
    x = 526,017.07

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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.