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Finding the Fourth Proportional to 922,419.72, 1,272,970.76 and 535,205.91

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Solution

The fourth proportional to 922,419.72, 1,272,970.76 and 535,205.91 is: 738,602.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,419.72 : 1,272,970.76 = 535,205.91 : x
  2. Step 2: Convert to fraction form
    922,419.72/1,272,970.76 = 535,205.91/x
  3. Step 3: Cross multiply
    922,419.72x = 1,272,970.76 × 535,205.91
  4. Step 4: Simplify right side
    922,419.72x = 681,301,471,333.16
  5. Step 5: Solve for x
    x = 681,301,471,333.16/922,419.72
  6. Step 6: Final answer
    x = 738,602.46

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.