Home / 545,230.20-816,095.70-426,257.40

Finding the Fourth Proportional to 545,230.20, 816,095.70 and 426,257.40

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Solution

The fourth proportional to 545,230.20, 816,095.70 and 426,257.40 is: 638,018.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,230.20 : 816,095.70 = 426,257.40 : x
  2. Step 2: Convert to fraction form
    545,230.20/816,095.70 = 426,257.40/x
  3. Step 3: Cross multiply
    545,230.20x = 816,095.70 × 426,257.40
  4. Step 4: Simplify right side
    545,230.20x = 347,866,831,233.18
  5. Step 5: Solve for x
    x = 347,866,831,233.18/545,230.20
  6. Step 6: Final answer
    x = 638,018.27

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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.