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Finding the Fourth Proportional to 708,041.60, 1,061,760 and 328,728.32

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Solution

The fourth proportional to 708,041.60, 1,061,760 and 328,728.32 is: 492,952.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,041.60 : 1,061,760 = 328,728.32 : x
  2. Step 2: Convert to fraction form
    708,041.60/1,061,760 = 328,728.32/x
  3. Step 3: Cross multiply
    708,041.60x = 1,061,760 × 328,728.32
  4. Step 4: Simplify right side
    708,041.60x = 349,030,581,043.20
  5. Step 5: Solve for x
    x = 349,030,581,043.20/708,041.60
  6. Step 6: Final answer
    x = 492,952.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.