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Finding the Fourth Proportional to 710,168.40, 1,065,713.40 and 410,648.40

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Solution

The fourth proportional to 710,168.40, 1,065,713.40 and 410,648.40 is: 616,239.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,168.40 : 1,065,713.40 = 410,648.40 : x
  2. Step 2: Convert to fraction form
    710,168.40/1,065,713.40 = 410,648.40/x
  3. Step 3: Cross multiply
    710,168.40x = 1,065,713.40 × 410,648.40
  4. Step 4: Simplify right side
    710,168.40x = 437,633,502,568.56
  5. Step 5: Solve for x
    x = 437,633,502,568.56/710,168.40
  6. Step 6: Final answer
    x = 616,239.05

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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.