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Finding the Fourth Proportional to 355,728.84, 533,594.16 and 145,366.77

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Solution

The fourth proportional to 355,728.84, 533,594.16 and 145,366.77 is: 218,050.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,728.84 : 533,594.16 = 145,366.77 : x
  2. Step 2: Convert to fraction form
    355,728.84/533,594.16 = 145,366.77/x
  3. Step 3: Cross multiply
    355,728.84x = 533,594.16 × 145,366.77
  4. Step 4: Simplify right side
    355,728.84x = 77,566,859,530.06
  5. Step 5: Solve for x
    x = 77,566,859,530.06/355,728.84
  6. Step 6: Final answer
    x = 218,050.52

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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.