Home / 688,045.52-949,499.08-386,239.44

Finding the Fourth Proportional to 688,045.52, 949,499.08 and 386,239.44

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Solution

The fourth proportional to 688,045.52, 949,499.08 and 386,239.44 is: 533,008.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,045.52 : 949,499.08 = 386,239.44 : x
  2. Step 2: Convert to fraction form
    688,045.52/949,499.08 = 386,239.44/x
  3. Step 3: Cross multiply
    688,045.52x = 949,499.08 × 386,239.44
  4. Step 4: Simplify right side
    688,045.52x = 366,733,992,939.72
  5. Step 5: Solve for x
    x = 366,733,992,939.72/688,045.52
  6. Step 6: Final answer
    x = 533,008.33

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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.