Home / 984,645.02-1,358,289.38-678,194.34

Finding the Fourth Proportional to 984,645.02, 1,358,289.38 and 678,194.34

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Solution

The fourth proportional to 984,645.02, 1,358,289.38 and 678,194.34 is: 935,549.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,645.02 : 1,358,289.38 = 678,194.34 : x
  2. Step 2: Convert to fraction form
    984,645.02/1,358,289.38 = 678,194.34/x
  3. Step 3: Cross multiply
    984,645.02x = 1,358,289.38 × 678,194.34
  4. Step 4: Simplify right side
    984,645.02x = 921,184,166,207.14
  5. Step 5: Solve for x
    x = 921,184,166,207.14/984,645.02
  6. Step 6: Final answer
    x = 935,549.51

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Double scale
Find fourth proportional to 984,646.02, 1,358,290.75 and 678,195.34
Similar ratio
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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.