Home / 628,934.13-868,468.55-608,598.45

Finding the Fourth Proportional to 628,934.13, 868,468.55 and 608,598.45

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Solution

The fourth proportional to 628,934.13, 868,468.55 and 608,598.45 is: 840,387.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,934.13 : 868,468.55 = 608,598.45 : x
  2. Step 2: Convert to fraction form
    628,934.13/868,468.55 = 608,598.45/x
  3. Step 3: Cross multiply
    628,934.13x = 868,468.55 × 608,598.45
  4. Step 4: Simplify right side
    628,934.13x = 528,548,610,360.76
  5. Step 5: Solve for x
    x = 528,548,610,360.76/628,934.13
  6. Step 6: Final answer
    x = 840,387.86

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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.