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Finding the Fourth Proportional to 518,953.77, 778,561.88 and 144,976.77

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Solution

The fourth proportional to 518,953.77, 778,561.88 and 144,976.77 is: 217,501.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,953.77 : 778,561.88 = 144,976.77 : x
  2. Step 2: Convert to fraction form
    518,953.77/778,561.88 = 144,976.77/x
  3. Step 3: Cross multiply
    518,953.77x = 778,561.88 × 144,976.77
  4. Step 4: Simplify right side
    518,953.77x = 112,873,385,882.64
  5. Step 5: Solve for x
    x = 112,873,385,882.64/518,953.77
  6. Step 6: Final answer
    x = 217,501.81

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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.