Home / 753,586.07-1,039,654.24-431,123.45

Finding the Fourth Proportional to 753,586.07, 1,039,654.24 and 431,123.45

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Solution

The fourth proportional to 753,586.07, 1,039,654.24 and 431,123.45 is: 594,781.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,586.07 : 1,039,654.24 = 431,123.45 : x
  2. Step 2: Convert to fraction form
    753,586.07/1,039,654.24 = 431,123.45/x
  3. Step 3: Cross multiply
    753,586.07x = 1,039,654.24 × 431,123.45
  4. Step 4: Simplify right side
    753,586.07x = 448,219,316,479.85
  5. Step 5: Solve for x
    x = 448,219,316,479.85/753,586.07
  6. Step 6: Final answer
    x = 594,781.85

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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.