Home / 999,432.60-1,379,212.68-540,547.62

Finding the Fourth Proportional to 999,432.60, 1,379,212.68 and 540,547.62

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Solution

The fourth proportional to 999,432.60, 1,379,212.68 and 540,547.62 is: 745,953.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,432.60 : 1,379,212.68 = 540,547.62 : x
  2. Step 2: Convert to fraction form
    999,432.60/1,379,212.68 = 540,547.62/x
  3. Step 3: Cross multiply
    999,432.60x = 1,379,212.68 × 540,547.62
  4. Step 4: Simplify right side
    999,432.60x = 745,530,131,647.82
  5. Step 5: Solve for x
    x = 745,530,131,647.82/999,432.60
  6. Step 6: Final answer
    x = 745,953.39

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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.