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Finding the Fourth Proportional to 355,415.49, 533,271.33 and 155,879.16

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Solution

The fourth proportional to 355,415.49, 533,271.33 and 155,879.16 is: 233,883.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,415.49 : 533,271.33 = 155,879.16 : x
  2. Step 2: Convert to fraction form
    355,415.49/533,271.33 = 155,879.16/x
  3. Step 3: Cross multiply
    355,415.49x = 533,271.33 × 155,879.16
  4. Step 4: Simplify right side
    355,415.49x = 83,125,886,972.48
  5. Step 5: Solve for x
    x = 83,125,886,972.48/355,415.49
  6. Step 6: Final answer
    x = 233,883.69

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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.