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Finding the Fourth Proportional to 704,858.61, 972,705.74 and 382,568.79

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Solution

The fourth proportional to 704,858.61, 972,705.74 and 382,568.79 is: 527,945.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,858.61 : 972,705.74 = 382,568.79 : x
  2. Step 2: Convert to fraction form
    704,858.61/972,705.74 = 382,568.79/x
  3. Step 3: Cross multiply
    704,858.61x = 972,705.74 × 382,568.79
  4. Step 4: Simplify right side
    704,858.61x = 372,126,857,977.86
  5. Step 5: Solve for x
    x = 372,126,857,977.86/704,858.61
  6. Step 6: Final answer
    x = 527,945.40

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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.