Home / 987,801.30-1,363,172.32-535,092.30

Finding the Fourth Proportional to 987,801.30, 1,363,172.32 and 535,092.30

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Solution

The fourth proportional to 987,801.30, 1,363,172.32 and 535,092.30 is: 738,430.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,801.30 : 1,363,172.32 = 535,092.30 : x
  2. Step 2: Convert to fraction form
    987,801.30/1,363,172.32 = 535,092.30/x
  3. Step 3: Cross multiply
    987,801.30x = 1,363,172.32 × 535,092.30
  4. Step 4: Simplify right side
    987,801.30x = 729,423,012,005.14
  5. Step 5: Solve for x
    x = 729,423,012,005.14/987,801.30
  6. Step 6: Final answer
    x = 738,430.91

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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.