Home / 705,258.72-973,199.28-387,306.72

Finding the Fourth Proportional to 705,258.72, 973,199.28 and 387,306.72

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Solution

The fourth proportional to 705,258.72, 973,199.28 and 387,306.72 is: 534,451.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,258.72 : 973,199.28 = 387,306.72 : x
  2. Step 2: Convert to fraction form
    705,258.72/973,199.28 = 387,306.72/x
  3. Step 3: Cross multiply
    705,258.72x = 973,199.28 × 387,306.72
  4. Step 4: Simplify right side
    705,258.72x = 376,926,621,043.16
  5. Step 5: Solve for x
    x = 376,926,621,043.16/705,258.72
  6. Step 6: Final answer
    x = 534,451.56

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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.