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Finding the Fourth Proportional to 708,352.88, 977,498.46 and 386,056.08

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Solution

The fourth proportional to 708,352.88, 977,498.46 and 386,056.08 is: 532,741.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,352.88 : 977,498.46 = 386,056.08 : x
  2. Step 2: Convert to fraction form
    708,352.88/977,498.46 = 386,056.08/x
  3. Step 3: Cross multiply
    708,352.88x = 977,498.46 × 386,056.08
  4. Step 4: Simplify right side
    708,352.88x = 377,369,223,673.64
  5. Step 5: Solve for x
    x = 377,369,223,673.64/708,352.88
  6. Step 6: Final answer
    x = 532,741.85

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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.