Home / 778,458.86-1,074,881.31-609,175.34

Finding the Fourth Proportional to 778,458.86, 1,074,881.31 and 609,175.34

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Solution

The fourth proportional to 778,458.86, 1,074,881.31 and 609,175.34 is: 841,137.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,458.86 : 1,074,881.31 = 609,175.34 : x
  2. Step 2: Convert to fraction form
    778,458.86/1,074,881.31 = 609,175.34/x
  3. Step 3: Cross multiply
    778,458.86x = 1,074,881.31 × 609,175.34
  4. Step 4: Simplify right side
    778,458.86x = 654,791,187,478.90
  5. Step 5: Solve for x
    x = 654,791,187,478.90/778,458.86
  6. Step 6: Final answer
    x = 841,137.82

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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.