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Finding the Fourth Proportional to 468,339.80, 646,313.65 and 253,484.46

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Solution

The fourth proportional to 468,339.80, 646,313.65 and 253,484.46 is: 349,811.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,339.80 : 646,313.65 = 253,484.46 : x
  2. Step 2: Convert to fraction form
    468,339.80/646,313.65 = 253,484.46/x
  3. Step 3: Cross multiply
    468,339.80x = 646,313.65 × 253,484.46
  4. Step 4: Simplify right side
    468,339.80x = 163,830,465,927.17
  5. Step 5: Solve for x
    x = 163,830,465,927.17/468,339.80
  6. Step 6: Final answer
    x = 349,811.12

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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.