Home / 678,256.40-1,017,384.60-235,069.20

Finding the Fourth Proportional to 678,256.40, 1,017,384.60 and 235,069.20

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Solution

The fourth proportional to 678,256.40, 1,017,384.60 and 235,069.20 is: 352,603.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,256.40 : 1,017,384.60 = 235,069.20 : x
  2. Step 2: Convert to fraction form
    678,256.40/1,017,384.60 = 235,069.20/x
  3. Step 3: Cross multiply
    678,256.40x = 1,017,384.60 × 235,069.20
  4. Step 4: Simplify right side
    678,256.40x = 239,155,784,014.32
  5. Step 5: Solve for x
    x = 239,155,784,014.32/678,256.40
  6. Step 6: Final answer
    x = 352,603.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.