Home / 829,285.20-1,243,927.80-409,381.20

Finding the Fourth Proportional to 829,285.20, 1,243,927.80 and 409,381.20

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Solution

The fourth proportional to 829,285.20, 1,243,927.80 and 409,381.20 is: 614,071.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,285.20 : 1,243,927.80 = 409,381.20 : x
  2. Step 2: Convert to fraction form
    829,285.20/1,243,927.80 = 409,381.20/x
  3. Step 3: Cross multiply
    829,285.20x = 1,243,927.80 × 409,381.20
  4. Step 4: Simplify right side
    829,285.20x = 509,240,655,477.36
  5. Step 5: Solve for x
    x = 509,240,655,477.36/829,285.20
  6. Step 6: Final answer
    x = 614,071.80

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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.