Home / 437,621.92-603,977.45-256,406.18

Finding the Fourth Proportional to 437,621.92, 603,977.45 and 256,406.18

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Solution

The fourth proportional to 437,621.92, 603,977.45 and 256,406.18 is: 353,875.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,621.92 : 603,977.45 = 256,406.18 : x
  2. Step 2: Convert to fraction form
    437,621.92/603,977.45 = 256,406.18/x
  3. Step 3: Cross multiply
    437,621.92x = 603,977.45 × 256,406.18
  4. Step 4: Simplify right side
    437,621.92x = 154,863,549,478.61
  5. Step 5: Solve for x
    x = 154,863,549,478.61/437,621.92
  6. Step 6: Final answer
    x = 353,875.22

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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.