Home / 987,808.16-1,363,174.80-535,095.20

Finding the Fourth Proportional to 987,808.16, 1,363,174.80 and 535,095.20

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Solution

The fourth proportional to 987,808.16, 1,363,174.80 and 535,095.20 is: 738,431.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,808.16 : 1,363,174.80 = 535,095.20 : x
  2. Step 2: Convert to fraction form
    987,808.16/1,363,174.80 = 535,095.20/x
  3. Step 3: Cross multiply
    987,808.16x = 1,363,174.80 × 535,095.20
  4. Step 4: Simplify right side
    987,808.16x = 729,428,292,240.96
  5. Step 5: Solve for x
    x = 729,428,292,240.96/987,808.16
  6. Step 6: Final answer
    x = 738,431.13

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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.