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Finding the Fourth Proportional to 1,157,608.64, 1,736,697.12 and 934,986.56

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Solution

The fourth proportional to 1,157,608.64, 1,736,697.12 and 934,986.56 is: 1,402,709.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157,608.64 : 1,736,697.12 = 934,986.56 : x
  2. Step 2: Convert to fraction form
    1,157,608.64/1,736,697.12 = 934,986.56/x
  3. Step 3: Cross multiply
    1,157,608.64x = 1,736,697.12 × 934,986.56
  4. Step 4: Simplify right side
    1,157,608.64x = 1,623,788,465,990.71
  5. Step 5: Solve for x
    x = 1,623,788,465,990.71/1,157,608.64
  6. Step 6: Final answer
    x = 1,402,709.35

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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.