Home / 855,657.96-1,180,437.22-515,937.48

Finding the Fourth Proportional to 855,657.96, 1,180,437.22 and 515,937.48

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Solution

The fourth proportional to 855,657.96, 1,180,437.22 and 515,937.48 is: 711,770.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,657.96 : 1,180,437.22 = 515,937.48 : x
  2. Step 2: Convert to fraction form
    855,657.96/1,180,437.22 = 515,937.48/x
  3. Step 3: Cross multiply
    855,657.96x = 1,180,437.22 × 515,937.48
  4. Step 4: Simplify right side
    855,657.96x = 609,031,804,585.01
  5. Step 5: Solve for x
    x = 609,031,804,585.01/855,657.96
  6. Step 6: Final answer
    x = 711,770.16

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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.