Home / 691,198.08-953,897.28-521,132.16

Finding the Fourth Proportional to 691,198.08, 953,897.28 and 521,132.16

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Solution

The fourth proportional to 691,198.08, 953,897.28 and 521,132.16 is: 719,195.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,198.08 : 953,897.28 = 521,132.16 : x
  2. Step 2: Convert to fraction form
    691,198.08/953,897.28 = 521,132.16/x
  3. Step 3: Cross multiply
    691,198.08x = 953,897.28 × 521,132.16
  4. Step 4: Simplify right side
    691,198.08x = 497,106,549,944.53
  5. Step 5: Solve for x
    x = 497,106,549,944.53/691,198.08
  6. Step 6: Final answer
    x = 719,195.50

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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.