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Finding the Fourth Proportional to 1,300,083.60, 1,947,792.60 and 1,113,459.60

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Solution

The fourth proportional to 1,300,083.60, 1,947,792.60 and 1,113,459.60 is: 1,668,191.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,083.60 : 1,947,792.60 = 1,113,459.60 : x
  2. Step 2: Convert to fraction form
    1,300,083.60/1,947,792.60 = 1,113,459.60/x
  3. Step 3: Cross multiply
    1,300,083.60x = 1,947,792.60 × 1,113,459.60
  4. Step 4: Simplify right side
    1,300,083.60x = 2,168,788,369,278.96
  5. Step 5: Solve for x
    x = 2,168,788,369,278.96/1,300,083.60
  6. Step 6: Final answer
    x = 1,668,191.47

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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.