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Finding the Fourth Proportional to 472,884.68, 651,818.34 and 319,866.98

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Solution

The fourth proportional to 472,884.68, 651,818.34 and 319,866.98 is: 440,900.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,884.68 : 651,818.34 = 319,866.98 : x
  2. Step 2: Convert to fraction form
    472,884.68/651,818.34 = 319,866.98/x
  3. Step 3: Cross multiply
    472,884.68x = 651,818.34 × 319,866.98
  4. Step 4: Simplify right side
    472,884.68x = 208,495,160,665.32
  5. Step 5: Solve for x
    x = 208,495,160,665.32/472,884.68
  6. Step 6: Final answer
    x = 440,900.64

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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.