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Finding the Fourth Proportional to 535,474.68, 738,957.78 and 293,779.59

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Solution

The fourth proportional to 535,474.68, 738,957.78 and 293,779.59 is: 405,417.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,474.68 : 738,957.78 = 293,779.59 : x
  2. Step 2: Convert to fraction form
    535,474.68/738,957.78 = 293,779.59/x
  3. Step 3: Cross multiply
    535,474.68x = 738,957.78 × 293,779.59
  4. Step 4: Simplify right side
    535,474.68x = 217,090,713,635.71
  5. Step 5: Solve for x
    x = 217,090,713,635.71/535,474.68
  6. Step 6: Final answer
    x = 405,417.33

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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.