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Finding the Fourth Proportional to 502,790.48, 693,844.75 and 374,303.01

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Solution

The fourth proportional to 502,790.48, 693,844.75 and 374,303.01 is: 516,533.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,790.48 : 693,844.75 = 374,303.01 : x
  2. Step 2: Convert to fraction form
    502,790.48/693,844.75 = 374,303.01/x
  3. Step 3: Cross multiply
    502,790.48x = 693,844.75 × 374,303.01
  4. Step 4: Simplify right side
    502,790.48x = 259,708,178,397.70
  5. Step 5: Solve for x
    x = 259,708,178,397.70/502,790.48
  6. Step 6: Final answer
    x = 516,533.60

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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.