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Finding the Fourth Proportional to 426,490.29, 588,657.56 and 245,306.93

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Solution

The fourth proportional to 426,490.29, 588,657.56 and 245,306.93 is: 338,581.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,490.29 : 588,657.56 = 245,306.93 : x
  2. Step 2: Convert to fraction form
    426,490.29/588,657.56 = 245,306.93/x
  3. Step 3: Cross multiply
    426,490.29x = 588,657.56 × 245,306.93
  4. Step 4: Simplify right side
    426,490.29x = 144,401,774,695.07
  5. Step 5: Solve for x
    x = 144,401,774,695.07/426,490.29
  6. Step 6: Final answer
    x = 338,581.62

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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.