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Finding the Fourth Proportional to 531,106.51, 796,895.25 and 278,326.91

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Solution

The fourth proportional to 531,106.51, 796,895.25 and 278,326.91 is: 417,613.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,106.51 : 796,895.25 = 278,326.91 : x
  2. Step 2: Convert to fraction form
    531,106.51/796,895.25 = 278,326.91/x
  3. Step 3: Cross multiply
    531,106.51x = 796,895.25 × 278,326.91
  4. Step 4: Simplify right side
    531,106.51x = 221,797,390,533.94
  5. Step 5: Solve for x
    x = 221,797,390,533.94/531,106.51
  6. Step 6: Final answer
    x = 417,613.77

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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.