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Finding the Fourth Proportional to 539,674,838.40, 744,751,526.08 and 292,156,192.56

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Solution

The fourth proportional to 539,674,838.40, 744,751,526.08 and 292,156,192.56 is: 403,175,680.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,674,838.40 : 744,751,526.08 = 292,156,192.56 : x
  2. Step 2: Convert to fraction form
    539,674,838.40/744,751,526.08 = 292,156,192.56/x
  3. Step 3: Cross multiply
    539,674,838.40x = 744,751,526.08 × 292,156,192.56
  4. Step 4: Simplify right side
    539,674,838.40x = 217,583,770,262,782,368
  5. Step 5: Solve for x
    x = 217,583,770,262,782,368/539,674,838.40
  6. Step 6: Final answer
    x = 403,175,680.58

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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.