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Finding the Fourth Proportional to 518,730.94, 716,439.19 and 348,669.82

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Solution

The fourth proportional to 518,730.94, 716,439.19 and 348,669.82 is: 481,561.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,730.94 : 716,439.19 = 348,669.82 : x
  2. Step 2: Convert to fraction form
    518,730.94/716,439.19 = 348,669.82/x
  3. Step 3: Cross multiply
    518,730.94x = 716,439.19 × 348,669.82
  4. Step 4: Simplify right side
    518,730.94x = 249,800,721,674.90
  5. Step 5: Solve for x
    x = 249,800,721,674.90/518,730.94
  6. Step 6: Final answer
    x = 481,561.25

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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.