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Finding the Fourth Proportional to 683,736,316.32, 943,881,447 and 458,063,881.26

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Solution

The fourth proportional to 683,736,316.32, 943,881,447 and 458,063,881.26 is: 632,346,108.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,736,316.32 : 943,881,447 = 458,063,881.26 : x
  2. Step 2: Convert to fraction form
    683,736,316.32/943,881,447 = 458,063,881.26/x
  3. Step 3: Cross multiply
    683,736,316.32x = 943,881,447 × 458,063,881.26
  4. Step 4: Simplify right side
    683,736,316.32x = 432,357,999,062,124,992
  5. Step 5: Solve for x
    x = 432,357,999,062,124,992/683,736,316.32
  6. Step 6: Final answer
    x = 632,346,108.79

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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.