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Finding the Fourth Proportional to 714,700.67, 986,302.83 and 392,412.04

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Solution

The fourth proportional to 714,700.67, 986,302.83 and 392,412.04 is: 541,537.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,700.67 : 986,302.83 = 392,412.04 : x
  2. Step 2: Convert to fraction form
    714,700.67/986,302.83 = 392,412.04/x
  3. Step 3: Cross multiply
    714,700.67x = 986,302.83 × 392,412.04
  4. Step 4: Simplify right side
    714,700.67x = 387,037,107,924.50
  5. Step 5: Solve for x
    x = 387,037,107,924.50/714,700.67
  6. Step 6: Final answer
    x = 541,537.36

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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.