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Finding the Fourth Proportional to 705,165.54, 973,128.50 and 382,875.85

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Solution

The fourth proportional to 705,165.54, 973,128.50 and 382,875.85 is: 528,368.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,165.54 : 973,128.50 = 382,875.85 : x
  2. Step 2: Convert to fraction form
    705,165.54/973,128.50 = 382,875.85/x
  3. Step 3: Cross multiply
    705,165.54x = 973,128.50 × 382,875.85
  4. Step 4: Simplify right side
    705,165.54x = 372,587,401,596.73
  5. Step 5: Solve for x
    x = 372,587,401,596.73/705,165.54
  6. Step 6: Final answer
    x = 528,368.70

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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.