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Finding the Fourth Proportional to 557,543.51, 769,419.39 and 302,894.90

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Solution

The fourth proportional to 557,543.51, 769,419.39 and 302,894.90 is: 418,000.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,543.51 : 769,419.39 = 302,894.90 : x
  2. Step 2: Convert to fraction form
    557,543.51/769,419.39 = 302,894.90/x
  3. Step 3: Cross multiply
    557,543.51x = 769,419.39 × 302,894.90
  4. Step 4: Simplify right side
    557,543.51x = 233,053,209,192.11
  5. Step 5: Solve for x
    x = 233,053,209,192.11/557,543.51
  6. Step 6: Final answer
    x = 418,000.04

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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.