Home / 840,411.23-1,159,766.12-458,438.00

Finding the Fourth Proportional to 840,411.23, 1,159,766.12 and 458,438.00

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Solution

The fourth proportional to 840,411.23, 1,159,766.12 and 458,438.00 is: 632,643.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,411.23 : 1,159,766.12 = 458,438.00 : x
  2. Step 2: Convert to fraction form
    840,411.23/1,159,766.12 = 458,438.00/x
  3. Step 3: Cross multiply
    840,411.23x = 1,159,766.12 × 458,438.00
  4. Step 4: Simplify right side
    840,411.23x = 531,680,855,867.82
  5. Step 5: Solve for x
    x = 531,680,855,867.82/840,411.23
  6. Step 6: Final answer
    x = 632,643.69

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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.