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Finding the Fourth Proportional to 397,210.32, 548,012.52 and 254,054.16

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Solution

The fourth proportional to 397,210.32, 548,012.52 and 254,054.16 is: 350,506.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,210.32 : 548,012.52 = 254,054.16 : x
  2. Step 2: Convert to fraction form
    397,210.32/548,012.52 = 254,054.16/x
  3. Step 3: Cross multiply
    397,210.32x = 548,012.52 × 254,054.16
  4. Step 4: Simplify right side
    397,210.32x = 139,224,860,438.08
  5. Step 5: Solve for x
    x = 139,224,860,438.08/397,210.32
  6. Step 6: Final answer
    x = 350,506.65

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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.