Home / 723,828.16-998,837.76-437,178.88

Finding the Fourth Proportional to 723,828.16, 998,837.76 and 437,178.88

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Solution

The fourth proportional to 723,828.16, 998,837.76 and 437,178.88 is: 603,279.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,828.16 : 998,837.76 = 437,178.88 : x
  2. Step 2: Convert to fraction form
    723,828.16/998,837.76 = 437,178.88/x
  3. Step 3: Cross multiply
    723,828.16x = 998,837.76 × 437,178.88
  4. Step 4: Simplify right side
    723,828.16x = 436,670,773,218.51
  5. Step 5: Solve for x
    x = 436,670,773,218.51/723,828.16
  6. Step 6: Final answer
    x = 603,279.61

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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.