Home / 1,208,416.20-1,812,566.70-409,619.40

Finding the Fourth Proportional to 1,208,416.20, 1,812,566.70 and 409,619.40

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Solution

The fourth proportional to 1,208,416.20, 1,812,566.70 and 409,619.40 is: 614,409.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,416.20 : 1,812,566.70 = 409,619.40 : x
  2. Step 2: Convert to fraction form
    1,208,416.20/1,812,566.70 = 409,619.40/x
  3. Step 3: Cross multiply
    1,208,416.20x = 1,812,566.70 × 409,619.40
  4. Step 4: Simplify right side
    1,208,416.20x = 742,462,484,113.98
  5. Step 5: Solve for x
    x = 742,462,484,113.98/1,208,416.20
  6. Step 6: Final answer
    x = 614,409.58

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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.