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Finding the Fourth Proportional to 504,343.96, 696,036.40 and 289,525.56

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Solution

The fourth proportional to 504,343.96, 696,036.40 and 289,525.56 is: 399,569.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,343.96 : 696,036.40 = 289,525.56 : x
  2. Step 2: Convert to fraction form
    504,343.96/696,036.40 = 289,525.56/x
  3. Step 3: Cross multiply
    504,343.96x = 696,036.40 × 289,525.56
  4. Step 4: Simplify right side
    504,343.96x = 201,520,328,490.38
  5. Step 5: Solve for x
    x = 201,520,328,490.38/504,343.96
  6. Step 6: Final answer
    x = 399,569.23

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Double scale
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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.