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Finding the Fourth Proportional to 708,063.93, 977,139.45 and 385,773.93

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Solution

The fourth proportional to 708,063.93, 977,139.45 and 385,773.93 is: 532,374.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,063.93 : 977,139.45 = 385,773.93 : x
  2. Step 2: Convert to fraction form
    708,063.93/977,139.45 = 385,773.93/x
  3. Step 3: Cross multiply
    708,063.93x = 977,139.45 × 385,773.93
  4. Step 4: Simplify right side
    708,063.93x = 376,954,925,784.54
  5. Step 5: Solve for x
    x = 376,954,925,784.54/708,063.93
  6. Step 6: Final answer
    x = 532,374.14

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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.