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Finding the Fourth Proportional to 368,707.79, 508,865.24 and 207,594.23

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Solution

The fourth proportional to 368,707.79, 508,865.24 and 207,594.23 is: 286,507.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,707.79 : 508,865.24 = 207,594.23 : x
  2. Step 2: Convert to fraction form
    368,707.79/508,865.24 = 207,594.23/x
  3. Step 3: Cross multiply
    368,707.79x = 508,865.24 × 207,594.23
  4. Step 4: Simplify right side
    368,707.79x = 105,637,489,462.71
  5. Step 5: Solve for x
    x = 105,637,489,462.71/368,707.79
  6. Step 6: Final answer
    x = 286,507.35

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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.