Home / 819,117.90-1,130,245.65-456,462.27

Finding the Fourth Proportional to 819,117.90, 1,130,245.65 and 456,462.27

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Solution

The fourth proportional to 819,117.90, 1,130,245.65 and 456,462.27 is: 629,841.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,117.90 : 1,130,245.65 = 456,462.27 : x
  2. Step 2: Convert to fraction form
    819,117.90/1,130,245.65 = 456,462.27/x
  3. Step 3: Cross multiply
    819,117.90x = 1,130,245.65 × 456,462.27
  4. Step 4: Simplify right side
    819,117.90x = 515,914,495,056.63
  5. Step 5: Solve for x
    x = 515,914,495,056.63/819,117.90
  6. Step 6: Final answer
    x = 629,841.56

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Double scale
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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.