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Finding the Fourth Proportional to 575,033.76, 858,507.36 and 439,387.92

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Solution

The fourth proportional to 575,033.76, 858,507.36 and 439,387.92 is: 655,992.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,033.76 : 858,507.36 = 439,387.92 : x
  2. Step 2: Convert to fraction form
    575,033.76/858,507.36 = 439,387.92/x
  3. Step 3: Cross multiply
    575,033.76x = 858,507.36 × 439,387.92
  4. Step 4: Simplify right side
    575,033.76x = 377,217,763,215.09
  5. Step 5: Solve for x
    x = 377,217,763,215.09/575,033.76
  6. Step 6: Final answer
    x = 655,992.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.