Home / 405,280.37-559,356.36-235,612.91

Finding the Fourth Proportional to 405,280.37, 559,356.36 and 235,612.91

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Solution

The fourth proportional to 405,280.37, 559,356.36 and 235,612.91 is: 325,186.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,280.37 : 559,356.36 = 235,612.91 : x
  2. Step 2: Convert to fraction form
    405,280.37/559,356.36 = 235,612.91/x
  3. Step 3: Cross multiply
    405,280.37x = 559,356.36 × 235,612.91
  4. Step 4: Simplify right side
    405,280.37x = 131,791,579,706.61
  5. Step 5: Solve for x
    x = 131,791,579,706.61/405,280.37
  6. Step 6: Final answer
    x = 325,186.19

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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.