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Finding the Fourth Proportional to 707,959,788.47, 976,674,571.25 and 675,136,663.50

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Solution

The fourth proportional to 707,959,788.47, 976,674,571.25 and 675,136,663.50 is: 931,393,028.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,959,788.47 : 976,674,571.25 = 675,136,663.50 : x
  2. Step 2: Convert to fraction form
    707,959,788.47/976,674,571.25 = 675,136,663.50/x
  3. Step 3: Cross multiply
    707,959,788.47x = 976,674,571.25 × 675,136,663.50
  4. Step 4: Simplify right side
    707,959,788.47x = 659,388,811,355,642,368
  5. Step 5: Solve for x
    x = 659,388,811,355,642,368/707,959,788.47
  6. Step 6: Final answer
    x = 931,393,028.39

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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.