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Finding the Fourth Proportional to 319,630.32, 476,825.72 and 310,942.46

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Solution

The fourth proportional to 319,630.32, 476,825.72 and 310,942.46 is: 463,865.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,630.32 : 476,825.72 = 310,942.46 : x
  2. Step 2: Convert to fraction form
    319,630.32/476,825.72 = 310,942.46/x
  3. Step 3: Cross multiply
    319,630.32x = 476,825.72 × 310,942.46
  4. Step 4: Simplify right side
    319,630.32x = 148,265,362,368.07
  5. Step 5: Solve for x
    x = 148,265,362,368.07/319,630.32
  6. Step 6: Final answer
    x = 463,865.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.