Home / 677,786.24-935,346.12-375,980.24

Finding the Fourth Proportional to 677,786.24, 935,346.12 and 375,980.24

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Solution

The fourth proportional to 677,786.24, 935,346.12 and 375,980.24 is: 518,853.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,786.24 : 935,346.12 = 375,980.24 : x
  2. Step 2: Convert to fraction form
    677,786.24/935,346.12 = 375,980.24/x
  3. Step 3: Cross multiply
    677,786.24x = 935,346.12 × 375,980.24
  4. Step 4: Simplify right side
    677,786.24x = 351,671,658,680.67
  5. Step 5: Solve for x
    x = 351,671,658,680.67/677,786.24
  6. Step 6: Final answer
    x = 518,853.35

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Half scale
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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.