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Finding the Fourth Proportional to 514,545.49, 771,807.07 and 177,574.81

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Solution

The fourth proportional to 514,545.49, 771,807.07 and 177,574.81 is: 266,358.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,545.49 : 771,807.07 = 177,574.81 : x
  2. Step 2: Convert to fraction form
    514,545.49/771,807.07 = 177,574.81/x
  3. Step 3: Cross multiply
    514,545.49x = 771,807.07 × 177,574.81
  4. Step 4: Simplify right side
    514,545.49x = 137,053,493,811.91
  5. Step 5: Solve for x
    x = 137,053,493,811.91/514,545.49
  6. Step 6: Final answer
    x = 266,358.36

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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.