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Finding the Fourth Proportional to 986,324, 1,361,113.67 and 550,748.07

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Solution

The fourth proportional to 986,324, 1,361,113.67 and 550,748.07 is: 760,024.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,324 : 1,361,113.67 = 550,748.07 : x
  2. Step 2: Convert to fraction form
    986,324/1,361,113.67 = 550,748.07/x
  3. Step 3: Cross multiply
    986,324x = 1,361,113.67 × 550,748.07
  4. Step 4: Simplify right side
    986,324x = 749,630,726,803.12
  5. Step 5: Solve for x
    x = 749,630,726,803.12/986,324
  6. Step 6: Final answer
    x = 760,024.83

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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.