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Finding the Fourth Proportional to 468,339.05, 646,312.62 and 253,483.71

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Solution

The fourth proportional to 468,339.05, 646,312.62 and 253,483.71 is: 349,810.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,339.05 : 646,312.62 = 253,483.71 : x
  2. Step 2: Convert to fraction form
    468,339.05/646,312.62 = 253,483.71/x
  3. Step 3: Cross multiply
    468,339.05x = 646,312.62 × 253,483.71
  4. Step 4: Simplify right side
    468,339.05x = 163,829,720,737.42
  5. Step 5: Solve for x
    x = 163,829,720,737.42/468,339.05
  6. Step 6: Final answer
    x = 349,810.08

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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.