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Finding the Fourth Proportional to 518,928.48, 716,085.36 and 292,525.92

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Solution

The fourth proportional to 518,928.48, 716,085.36 and 292,525.92 is: 403,665.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,928.48 : 716,085.36 = 292,525.92 : x
  2. Step 2: Convert to fraction form
    518,928.48/716,085.36 = 292,525.92/x
  3. Step 3: Cross multiply
    518,928.48x = 716,085.36 × 292,525.92
  4. Step 4: Simplify right side
    518,928.48x = 209,473,528,732.53
  5. Step 5: Solve for x
    x = 209,473,528,732.53/518,928.48
  6. Step 6: Final answer
    x = 403,665.51

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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.