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Finding the Fourth Proportional to 616,271.70, 865,268.70 and 616,271.70

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Solution

The fourth proportional to 616,271.70, 865,268.70 and 616,271.70 is: 865,268.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,271.70 : 865,268.70 = 616,271.70 : x
  2. Step 2: Convert to fraction form
    616,271.70/865,268.70 = 616,271.70/x
  3. Step 3: Cross multiply
    616,271.70x = 865,268.70 × 616,271.70
  4. Step 4: Simplify right side
    616,271.70x = 533,240,612,705.79
  5. Step 5: Solve for x
    x = 533,240,612,705.79/616,271.70
  6. Step 6: Final answer
    x = 865,268.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.