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Finding the Fourth Proportional to 265,653.07, 398,362.28 and 76,070.47

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Solution

The fourth proportional to 265,653.07, 398,362.28 and 76,070.47 is: 114,072.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,653.07 : 398,362.28 = 76,070.47 : x
  2. Step 2: Convert to fraction form
    265,653.07/398,362.28 = 76,070.47/x
  3. Step 3: Cross multiply
    265,653.07x = 398,362.28 × 76,070.47
  4. Step 4: Simplify right side
    265,653.07x = 30,303,604,334.10
  5. Step 5: Solve for x
    x = 30,303,604,334.10/265,653.07
  6. Step 6: Final answer
    x = 114,072.10

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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.