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Finding the Fourth Proportional to 707,265.40, 976,052 and 384,959.92

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Solution

The fourth proportional to 707,265.40, 976,052 and 384,959.92 is: 531,258.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,265.40 : 976,052 = 384,959.92 : x
  2. Step 2: Convert to fraction form
    707,265.40/976,052 = 384,959.92/x
  3. Step 3: Cross multiply
    707,265.40x = 976,052 × 384,959.92
  4. Step 4: Simplify right side
    707,265.40x = 375,740,899,835.84
  5. Step 5: Solve for x
    x = 375,740,899,835.84/707,265.40
  6. Step 6: Final answer
    x = 531,258.70

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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.