Home / 911,090.13-1,257,314.49-503,182.50

Finding the Fourth Proportional to 911,090.13, 1,257,314.49 and 503,182.50

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Solution

The fourth proportional to 911,090.13, 1,257,314.49 and 503,182.50 is: 694,397.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,090.13 : 1,257,314.49 = 503,182.50 : x
  2. Step 2: Convert to fraction form
    911,090.13/1,257,314.49 = 503,182.50/x
  3. Step 3: Cross multiply
    911,090.13x = 1,257,314.49 × 503,182.50
  4. Step 4: Simplify right side
    911,090.13x = 632,658,648,364.43
  5. Step 5: Solve for x
    x = 632,658,648,364.43/911,090.13
  6. Step 6: Final answer
    x = 694,397.43

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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.