Home / 1,213,812.40-1,820,281.20-614,574.40

Finding the Fourth Proportional to 1,213,812.40, 1,820,281.20 and 614,574.40

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Solution

The fourth proportional to 1,213,812.40, 1,820,281.20 and 614,574.40 is: 921,640.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,812.40 : 1,820,281.20 = 614,574.40 : x
  2. Step 2: Convert to fraction form
    1,213,812.40/1,820,281.20 = 614,574.40/x
  3. Step 3: Cross multiply
    1,213,812.40x = 1,820,281.20 × 614,574.40
  4. Step 4: Simplify right side
    1,213,812.40x = 1,118,698,226,321.28
  5. Step 5: Solve for x
    x = 1,118,698,226,321.28/1,213,812.40
  6. Step 6: Final answer
    x = 921,640.14

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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.