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Finding the Fourth Proportional to 1,197,430, 1,652,455.56 and 660,886

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Solution

The fourth proportional to 1,197,430, 1,652,455.56 and 660,886 is: 912,023.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197,430 : 1,652,455.56 = 660,886 : x
  2. Step 2: Convert to fraction form
    1,197,430/1,652,455.56 = 660,886/x
  3. Step 3: Cross multiply
    1,197,430x = 1,652,455.56 × 660,886
  4. Step 4: Simplify right side
    1,197,430x = 1,092,084,745,226.16
  5. Step 5: Solve for x
    x = 1,092,084,745,226.16/1,197,430
  6. Step 6: Final answer
    x = 912,023.87

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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.