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Finding the Fourth Proportional to 708,094.53, 977,158.02 and 385,806.93

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Solution

The fourth proportional to 708,094.53, 977,158.02 and 385,806.93 is: 532,406.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,094.53 : 977,158.02 = 385,806.93 : x
  2. Step 2: Convert to fraction form
    708,094.53/977,158.02 = 385,806.93/x
  3. Step 3: Cross multiply
    708,094.53x = 977,158.02 × 385,806.93
  4. Step 4: Simplify right side
    708,094.53x = 376,994,335,821.08
  5. Step 5: Solve for x
    x = 376,994,335,821.08/708,094.53
  6. Step 6: Final answer
    x = 532,406.79

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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.