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Finding the Fourth Proportional to 434,663.40, 651,995.10 and 292,945.80

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Solution

The fourth proportional to 434,663.40, 651,995.10 and 292,945.80 is: 439,418.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,663.40 : 651,995.10 = 292,945.80 : x
  2. Step 2: Convert to fraction form
    434,663.40/651,995.10 = 292,945.80/x
  3. Step 3: Cross multiply
    434,663.40x = 651,995.10 × 292,945.80
  4. Step 4: Simplify right side
    434,663.40x = 190,999,226,165.58
  5. Step 5: Solve for x
    x = 190,999,226,165.58/434,663.40
  6. Step 6: Final answer
    x = 439,418.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.