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Finding the Fourth Proportional to 557,543.01, 769,418.70 and 302,894.40

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Solution

The fourth proportional to 557,543.01, 769,418.70 and 302,894.40 is: 417,999.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,543.01 : 769,418.70 = 302,894.40 : x
  2. Step 2: Convert to fraction form
    557,543.01/769,418.70 = 302,894.40/x
  3. Step 3: Cross multiply
    557,543.01x = 769,418.70 × 302,894.40
  4. Step 4: Simplify right side
    557,543.01x = 233,052,615,485.28
  5. Step 5: Solve for x
    x = 233,052,615,485.28/557,543.01
  6. Step 6: Final answer
    x = 417,999.35

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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.