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Finding the Fourth Proportional to 1,014,169, 1,399,500 and 555,195.58

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Solution

The fourth proportional to 1,014,169, 1,399,500 and 555,195.58 is: 766,140.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,014,169 : 1,399,500 = 555,195.58 : x
  2. Step 2: Convert to fraction form
    1,014,169/1,399,500 = 555,195.58/x
  3. Step 3: Cross multiply
    1,014,169x = 1,399,500 × 555,195.58
  4. Step 4: Simplify right side
    1,014,169x = 776,996,214,210
  5. Step 5: Solve for x
    x = 776,996,214,210/1,014,169
  6. Step 6: Final answer
    x = 766,140.77

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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.