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Finding the Fourth Proportional to 632,406,489.76, 872,748,228.56 and 350,148,936

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Solution

The fourth proportional to 632,406,489.76, 872,748,228.56 and 350,148,936 is: 483,220,631.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,406,489.76 : 872,748,228.56 = 350,148,936 : x
  2. Step 2: Convert to fraction form
    632,406,489.76/872,748,228.56 = 350,148,936/x
  3. Step 3: Cross multiply
    632,406,489.76x = 872,748,228.56 × 350,148,936
  4. Step 4: Simplify right side
    632,406,489.76x = 305,591,863,626,168,768
  5. Step 5: Solve for x
    x = 305,591,863,626,168,768/632,406,489.76
  6. Step 6: Final answer
    x = 483,220,631.94

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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.