Home / 678,026.08-935,681.52-376,225.12

Finding the Fourth Proportional to 678,026.08, 935,681.52 and 376,225.12

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Solution

The fourth proportional to 678,026.08, 935,681.52 and 376,225.12 is: 519,193.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,026.08 : 935,681.52 = 376,225.12 : x
  2. Step 2: Convert to fraction form
    678,026.08/935,681.52 = 376,225.12/x
  3. Step 3: Cross multiply
    678,026.08x = 935,681.52 × 376,225.12
  4. Step 4: Simplify right side
    678,026.08x = 352,026,892,143.78
  5. Step 5: Solve for x
    x = 352,026,892,143.78/678,026.08
  6. Step 6: Final answer
    x = 519,193.73

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Double scale
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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.