Home / 938,585.84-1,296,317.40-636,254.96

Finding the Fourth Proportional to 938,585.84, 1,296,317.40 and 636,254.96

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Solution

The fourth proportional to 938,585.84, 1,296,317.40 and 636,254.96 is: 878,756.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,585.84 : 1,296,317.40 = 636,254.96 : x
  2. Step 2: Convert to fraction form
    938,585.84/1,296,317.40 = 636,254.96/x
  3. Step 3: Cross multiply
    938,585.84x = 1,296,317.40 × 636,254.96
  4. Step 4: Simplify right side
    938,585.84x = 824,788,375,484.30
  5. Step 5: Solve for x
    x = 824,788,375,484.30/938,585.84
  6. Step 6: Final answer
    x = 878,756.47

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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.