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Finding the Fourth Proportional to 507,673.48, 700,587.93 and 281,318.98

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Solution

The fourth proportional to 507,673.48, 700,587.93 and 281,318.98 is: 388,219.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,673.48 : 700,587.93 = 281,318.98 : x
  2. Step 2: Convert to fraction form
    507,673.48/700,587.93 = 281,318.98/x
  3. Step 3: Cross multiply
    507,673.48x = 700,587.93 × 281,318.98
  4. Step 4: Simplify right side
    507,673.48x = 197,088,681,867.91
  5. Step 5: Solve for x
    x = 197,088,681,867.91/507,673.48
  6. Step 6: Final answer
    x = 388,219.38

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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.