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Finding the Fourth Proportional to 709,620.30, 1,064,430.45 and 709,620.30

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Solution

The fourth proportional to 709,620.30, 1,064,430.45 and 709,620.30 is: 1,064,430.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,620.30 : 1,064,430.45 = 709,620.30 : x
  2. Step 2: Convert to fraction form
    709,620.30/1,064,430.45 = 709,620.30/x
  3. Step 3: Cross multiply
    709,620.30x = 1,064,430.45 × 709,620.30
  4. Step 4: Simplify right side
    709,620.30x = 755,341,455,258.14
  5. Step 5: Solve for x
    x = 755,341,455,258.14/709,620.30
  6. Step 6: Final answer
    x = 1,064,430.45

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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.