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Finding the Fourth Proportional to 703,608,192.50, 970,575,893.64 and 438,830,498.88

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Solution

The fourth proportional to 703,608,192.50, 970,575,893.64 and 438,830,498.88 is: 605,334,486.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,608,192.50 : 970,575,893.64 = 438,830,498.88 : x
  2. Step 2: Convert to fraction form
    703,608,192.50/970,575,893.64 = 438,830,498.88/x
  3. Step 3: Cross multiply
    703,608,192.50x = 970,575,893.64 × 438,830,498.88
  4. Step 4: Simplify right side
    703,608,192.50x = 425,918,303,606,943,040
  5. Step 5: Solve for x
    x = 425,918,303,606,943,040/703,608,192.50
  6. Step 6: Final answer
    x = 605,334,486.08

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1.5x scale

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.