Home / 678,835.40-1,018,253.10-235,603.40

Finding the Fourth Proportional to 678,835.40, 1,018,253.10 and 235,603.40

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Solution

The fourth proportional to 678,835.40, 1,018,253.10 and 235,603.40 is: 353,405.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,835.40 : 1,018,253.10 = 235,603.40 : x
  2. Step 2: Convert to fraction form
    678,835.40/1,018,253.10 = 235,603.40/x
  3. Step 3: Cross multiply
    678,835.40x = 1,018,253.10 × 235,603.40
  4. Step 4: Simplify right side
    678,835.40x = 239,903,892,420.54
  5. Step 5: Solve for x
    x = 239,903,892,420.54/678,835.40
  6. Step 6: Final answer
    x = 353,405.10

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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.