Home / 861,329.93-1,188,703.94-498,760.18

Finding the Fourth Proportional to 861,329.93, 1,188,703.94 and 498,760.18

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Solution

The fourth proportional to 861,329.93, 1,188,703.94 and 498,760.18 is: 688,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,329.93 : 1,188,703.94 = 498,760.18 : x
  2. Step 2: Convert to fraction form
    861,329.93/1,188,703.94 = 498,760.18/x
  3. Step 3: Cross multiply
    861,329.93x = 1,188,703.94 × 498,760.18
  4. Step 4: Simplify right side
    861,329.93x = 592,878,197,211.65
  5. Step 5: Solve for x
    x = 592,878,197,211.65/861,329.93
  6. Step 6: Final answer
    x = 688,328.80

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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.