Home / 915,186.12-1,370,992.31-434,730.23

Finding the Fourth Proportional to 915,186.12, 1,370,992.31 and 434,730.23

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Solution

The fourth proportional to 915,186.12, 1,370,992.31 and 434,730.23 is: 651,246.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,186.12 : 1,370,992.31 = 434,730.23 : x
  2. Step 2: Convert to fraction form
    915,186.12/1,370,992.31 = 434,730.23/x
  3. Step 3: Cross multiply
    915,186.12x = 1,370,992.31 × 434,730.23
  4. Step 4: Simplify right side
    915,186.12x = 596,011,793,225.92
  5. Step 5: Solve for x
    x = 596,011,793,225.92/915,186.12
  6. Step 6: Final answer
    x = 651,246.54

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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.