Home / 678,457.76-1,018,153.24-235,225.76

Finding the Fourth Proportional to 678,457.76, 1,018,153.24 and 235,225.76

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Solution

The fourth proportional to 678,457.76, 1,018,153.24 and 235,225.76 is: 353,000.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,457.76 : 1,018,153.24 = 235,225.76 : x
  2. Step 2: Convert to fraction form
    678,457.76/1,018,153.24 = 235,225.76/x
  3. Step 3: Cross multiply
    678,457.76x = 1,018,153.24 × 235,225.76
  4. Step 4: Simplify right side
    678,457.76x = 239,495,869,675.46
  5. Step 5: Solve for x
    x = 239,495,869,675.46/678,457.76
  6. Step 6: Final answer
    x = 353,000.41

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Double scale
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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.