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Finding the Fourth Proportional to 818,411.04, 1,129,464 and 496,134.72

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Solution

The fourth proportional to 818,411.04, 1,129,464 and 496,134.72 is: 684,700.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,411.04 : 1,129,464 = 496,134.72 : x
  2. Step 2: Convert to fraction form
    818,411.04/1,129,464 = 496,134.72/x
  3. Step 3: Cross multiply
    818,411.04x = 1,129,464 × 496,134.72
  4. Step 4: Simplify right side
    818,411.04x = 560,366,305,390.08
  5. Step 5: Solve for x
    x = 560,366,305,390.08/818,411.04
  6. Step 6: Final answer
    x = 684,700.33

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Double scale
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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.