Home / 651,837.90-977,720.40-202,555.20

Finding the Fourth Proportional to 651,837.90, 977,720.40 and 202,555.20

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Solution

The fourth proportional to 651,837.90, 977,720.40 and 202,555.20 is: 303,821.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,837.90 : 977,720.40 = 202,555.20 : x
  2. Step 2: Convert to fraction form
    651,837.90/977,720.40 = 202,555.20/x
  3. Step 3: Cross multiply
    651,837.90x = 977,720.40 × 202,555.20
  4. Step 4: Simplify right side
    651,837.90x = 198,042,351,166.08
  5. Step 5: Solve for x
    x = 198,042,351,166.08/651,837.90
  6. Step 6: Final answer
    x = 303,821.47

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Double scale
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1.5x scale

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.