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Finding the Fourth Proportional to 874,162.82, 1,311,384.36 and 368,798.24

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Solution

The fourth proportional to 874,162.82, 1,311,384.36 and 368,798.24 is: 553,256.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,162.82 : 1,311,384.36 = 368,798.24 : x
  2. Step 2: Convert to fraction form
    874,162.82/1,311,384.36 = 368,798.24/x
  3. Step 3: Cross multiply
    874,162.82x = 1,311,384.36 × 368,798.24
  4. Step 4: Simplify right side
    874,162.82x = 483,636,243,931.53
  5. Step 5: Solve for x
    x = 483,636,243,931.53/874,162.82
  6. Step 6: Final answer
    x = 553,256.48

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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.