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Finding the Fourth Proportional to 462,088.80, 691,966.80 and 303,458.40

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Solution

The fourth proportional to 462,088.80, 691,966.80 and 303,458.40 is: 454,421.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,088.80 : 691,966.80 = 303,458.40 : x
  2. Step 2: Convert to fraction form
    462,088.80/691,966.80 = 303,458.40/x
  3. Step 3: Cross multiply
    462,088.80x = 691,966.80 × 303,458.40
  4. Step 4: Simplify right side
    462,088.80x = 209,983,137,981.12
  5. Step 5: Solve for x
    x = 209,983,137,981.12/462,088.80
  6. Step 6: Final answer
    x = 454,421.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.