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Finding the Fourth Proportional to 345,482.94, 476,746.79 and 190,403.46

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Solution

The fourth proportional to 345,482.94, 476,746.79 and 190,403.46 is: 262,745.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,482.94 : 476,746.79 = 190,403.46 : x
  2. Step 2: Convert to fraction form
    345,482.94/476,746.79 = 190,403.46/x
  3. Step 3: Cross multiply
    345,482.94x = 476,746.79 × 190,403.46
  4. Step 4: Simplify right side
    345,482.94x = 90,774,237,407.88
  5. Step 5: Solve for x
    x = 90,774,237,407.88/345,482.94
  6. Step 6: Final answer
    x = 262,745.93

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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.