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Finding the Fourth Proportional to 555,827.15, 767,047.50 and 326,387.16

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Solution

The fourth proportional to 555,827.15, 767,047.50 and 326,387.16 is: 450,417.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,827.15 : 767,047.50 = 326,387.16 : x
  2. Step 2: Convert to fraction form
    555,827.15/767,047.50 = 326,387.16/x
  3. Step 3: Cross multiply
    555,827.15x = 767,047.50 × 326,387.16
  4. Step 4: Simplify right side
    555,827.15x = 250,354,455,110.10
  5. Step 5: Solve for x
    x = 250,354,455,110.10/555,827.15
  6. Step 6: Final answer
    x = 450,417.82

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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.