Home / 430,683.18-647,075.97-406,810.86

Finding the Fourth Proportional to 430,683.18, 647,075.97 and 406,810.86

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Solution

The fourth proportional to 430,683.18, 647,075.97 and 406,810.86 is: 611,209.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,683.18 : 647,075.97 = 406,810.86 : x
  2. Step 2: Convert to fraction form
    430,683.18/647,075.97 = 406,810.86/x
  3. Step 3: Cross multiply
    430,683.18x = 647,075.97 × 406,810.86
  4. Step 4: Simplify right side
    430,683.18x = 263,237,531,841.03
  5. Step 5: Solve for x
    x = 263,237,531,841.03/430,683.18
  6. Step 6: Final answer
    x = 611,209.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.