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Finding the Fourth Proportional to 1,369,599.02, 1,890,652 and 818,509.14

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Solution

The fourth proportional to 1,369,599.02, 1,890,652 and 818,509.14 is: 1,129,904.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,599.02 : 1,890,652 = 818,509.14 : x
  2. Step 2: Convert to fraction form
    1,369,599.02/1,890,652 = 818,509.14/x
  3. Step 3: Cross multiply
    1,369,599.02x = 1,890,652 × 818,509.14
  4. Step 4: Simplify right side
    1,369,599.02x = 1,547,515,942,559.28
  5. Step 5: Solve for x
    x = 1,547,515,942,559.28/1,369,599.02
  6. Step 6: Final answer
    x = 1,129,904.39

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1.5x scale

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.