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Finding the Fourth Proportional to 668,751.12, 922,747.95 and 382,210.38

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Solution

The fourth proportional to 668,751.12, 922,747.95 and 382,210.38 is: 527,376.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,751.12 : 922,747.95 = 382,210.38 : x
  2. Step 2: Convert to fraction form
    668,751.12/922,747.95 = 382,210.38/x
  3. Step 3: Cross multiply
    668,751.12x = 922,747.95 × 382,210.38
  4. Step 4: Simplify right side
    668,751.12x = 352,683,844,613.72
  5. Step 5: Solve for x
    x = 352,683,844,613.72/668,751.12
  6. Step 6: Final answer
    x = 527,376.83

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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.