Home / 839,511.18-1,158,491.70-457,529.76

Finding the Fourth Proportional to 839,511.18, 1,158,491.70 and 457,529.76

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Solution

The fourth proportional to 839,511.18, 1,158,491.70 and 457,529.76 is: 631,372.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,511.18 : 1,158,491.70 = 457,529.76 : x
  2. Step 2: Convert to fraction form
    839,511.18/1,158,491.70 = 457,529.76/x
  3. Step 3: Cross multiply
    839,511.18x = 1,158,491.70 × 457,529.76
  4. Step 4: Simplify right side
    839,511.18x = 530,044,429,462.99
  5. Step 5: Solve for x
    x = 530,044,429,462.99/839,511.18
  6. Step 6: Final answer
    x = 631,372.69

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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.