Home / 999,916.27-1,379,883.56-564,425.28

Finding the Fourth Proportional to 999,916.27, 1,379,883.56 and 564,425.28

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Solution

The fourth proportional to 999,916.27, 1,379,883.56 and 564,425.28 is: 778,906.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,916.27 : 1,379,883.56 = 564,425.28 : x
  2. Step 2: Convert to fraction form
    999,916.27/1,379,883.56 = 564,425.28/x
  3. Step 3: Cross multiply
    999,916.27x = 1,379,883.56 × 564,425.28
  4. Step 4: Simplify right side
    999,916.27x = 778,841,161,898.27
  5. Step 5: Solve for x
    x = 778,841,161,898.27/999,916.27
  6. Step 6: Final answer
    x = 778,906.38

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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.