Home / 891,678.40-1,230,516.08-509,713.44

Finding the Fourth Proportional to 891,678.40, 1,230,516.08 and 509,713.44

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Solution

The fourth proportional to 891,678.40, 1,230,516.08 and 509,713.44 is: 703,404.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,678.40 : 1,230,516.08 = 509,713.44 : x
  2. Step 2: Convert to fraction form
    891,678.40/1,230,516.08 = 509,713.44/x
  3. Step 3: Cross multiply
    891,678.40x = 1,230,516.08 × 509,713.44
  4. Step 4: Simplify right side
    891,678.40x = 627,210,584,112.12
  5. Step 5: Solve for x
    x = 627,210,584,112.12/891,678.40
  6. Step 6: Final answer
    x = 703,404.48

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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.