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Finding the Fourth Proportional to 453,642.09, 626,021.14 and 249,688.64

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Solution

The fourth proportional to 453,642.09, 626,021.14 and 249,688.64 is: 344,567.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,642.09 : 626,021.14 = 249,688.64 : x
  2. Step 2: Convert to fraction form
    453,642.09/626,021.14 = 249,688.64/x
  3. Step 3: Cross multiply
    453,642.09x = 626,021.14 × 249,688.64
  4. Step 4: Simplify right side
    453,642.09x = 156,310,367,057.85
  5. Step 5: Solve for x
    x = 156,310,367,057.85/453,642.09
  6. Step 6: Final answer
    x = 344,567.60

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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.