Home / 691,200.08-953,900.04-521,134.16

Finding the Fourth Proportional to 691,200.08, 953,900.04 and 521,134.16

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Solution

The fourth proportional to 691,200.08, 953,900.04 and 521,134.16 is: 719,198.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,200.08 : 953,900.04 = 521,134.16 : x
  2. Step 2: Convert to fraction form
    691,200.08/953,900.04 = 521,134.16/x
  3. Step 3: Cross multiply
    691,200.08x = 953,900.04 × 521,134.16
  4. Step 4: Simplify right side
    691,200.08x = 497,109,896,069.37
  5. Step 5: Solve for x
    x = 497,109,896,069.37/691,200.08
  6. Step 6: Final answer
    x = 719,198.26

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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.