Home / 819,643.16-1,131,127.44-457,063.46

Finding the Fourth Proportional to 819,643.16, 1,131,127.44 and 457,063.46

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Solution

The fourth proportional to 819,643.16, 1,131,127.44 and 457,063.46 is: 630,758.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,643.16 : 1,131,127.44 = 457,063.46 : x
  2. Step 2: Convert to fraction form
    819,643.16/1,131,127.44 = 457,063.46/x
  3. Step 3: Cross multiply
    819,643.16x = 1,131,127.44 × 457,063.46
  4. Step 4: Simplify right side
    819,643.16x = 516,997,021,427.34
  5. Step 5: Solve for x
    x = 516,997,021,427.34/819,643.16
  6. Step 6: Final answer
    x = 630,758.66

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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.