Home / 771,404.19-1,152,415.23-499,315.88

Finding the Fourth Proportional to 771,404.19, 1,152,415.23 and 499,315.88

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Solution

The fourth proportional to 771,404.19, 1,152,415.23 and 499,315.88 is: 745,937.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,404.19 : 1,152,415.23 = 499,315.88 : x
  2. Step 2: Convert to fraction form
    771,404.19/1,152,415.23 = 499,315.88/x
  3. Step 3: Cross multiply
    771,404.19x = 1,152,415.23 × 499,315.88
  4. Step 4: Simplify right side
    771,404.19x = 575,419,218,930.78
  5. Step 5: Solve for x
    x = 575,419,218,930.78/771,404.19
  6. Step 6: Final answer
    x = 745,937.38

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.