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Finding the Fourth Proportional to 1,359,655.08, 1,876,558.86 and 787,011

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Solution

The fourth proportional to 1,359,655.08, 1,876,558.86 and 787,011 is: 1,086,211.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,655.08 : 1,876,558.86 = 787,011 : x
  2. Step 2: Convert to fraction form
    1,359,655.08/1,876,558.86 = 787,011/x
  3. Step 3: Cross multiply
    1,359,655.08x = 1,876,558.86 × 787,011
  4. Step 4: Simplify right side
    1,359,655.08x = 1,476,872,464,967.46
  5. Step 5: Solve for x
    x = 1,476,872,464,967.46/1,359,655.08
  6. Step 6: Final answer
    x = 1,086,211.12

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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.