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Finding the Fourth Proportional to 381,152.85, 526,086.51 and 258,852.16

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Solution

The fourth proportional to 381,152.85, 526,086.51 and 258,852.16 is: 357,280.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,152.85 : 526,086.51 = 258,852.16 : x
  2. Step 2: Convert to fraction form
    381,152.85/526,086.51 = 258,852.16/x
  3. Step 3: Cross multiply
    381,152.85x = 526,086.51 × 258,852.16
  4. Step 4: Simplify right side
    381,152.85x = 136,178,629,460.36
  5. Step 5: Solve for x
    x = 136,178,629,460.36/381,152.85
  6. Step 6: Final answer
    x = 357,280.89

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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.