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Finding the Fourth Proportional to 668,653.29, 922,805.19 and 382,117.82

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Solution

The fourth proportional to 668,653.29, 922,805.19 and 382,117.82 is: 527,358.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,653.29 : 922,805.19 = 382,117.82 : x
  2. Step 2: Convert to fraction form
    668,653.29/922,805.19 = 382,117.82/x
  3. Step 3: Cross multiply
    668,653.29x = 922,805.19 × 382,117.82
  4. Step 4: Simplify right side
    668,653.29x = 352,620,302,873.46
  5. Step 5: Solve for x
    x = 352,620,302,873.46/668,653.29
  6. Step 6: Final answer
    x = 527,358.96

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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.