Home / 771,406.69-1,152,418.96-499,318.38

Finding the Fourth Proportional to 771,406.69, 1,152,418.96 and 499,318.38

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Solution

The fourth proportional to 771,406.69, 1,152,418.96 and 499,318.38 is: 745,941.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,406.69 : 1,152,418.96 = 499,318.38 : x
  2. Step 2: Convert to fraction form
    771,406.69/1,152,418.96 = 499,318.38/x
  3. Step 3: Cross multiply
    771,406.69x = 1,152,418.96 × 499,318.38
  4. Step 4: Simplify right side
    771,406.69x = 575,423,968,188.49
  5. Step 5: Solve for x
    x = 575,423,968,188.49/771,406.69
  6. Step 6: Final answer
    x = 745,941.12

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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.