Home / 864,189.23-1,192,403.09-496,595.36

Finding the Fourth Proportional to 864,189.23, 1,192,403.09 and 496,595.36

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Solution

The fourth proportional to 864,189.23, 1,192,403.09 and 496,595.36 is: 685,199.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,189.23 : 1,192,403.09 = 496,595.36 : x
  2. Step 2: Convert to fraction form
    864,189.23/1,192,403.09 = 496,595.36/x
  3. Step 3: Cross multiply
    864,189.23x = 1,192,403.09 × 496,595.36
  4. Step 4: Simplify right side
    864,189.23x = 592,141,833,298.67
  5. Step 5: Solve for x
    x = 592,141,833,298.67/864,189.23
  6. Step 6: Final answer
    x = 685,199.28

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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.