Home / 873,567.72-1,205,430.66-491,588.28

Finding the Fourth Proportional to 873,567.72, 1,205,430.66 and 491,588.28

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Solution

The fourth proportional to 873,567.72, 1,205,430.66 and 491,588.28 is: 678,339.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,567.72 : 1,205,430.66 = 491,588.28 : x
  2. Step 2: Convert to fraction form
    873,567.72/1,205,430.66 = 491,588.28/x
  3. Step 3: Cross multiply
    873,567.72x = 1,205,430.66 × 491,588.28
  4. Step 4: Simplify right side
    873,567.72x = 592,575,584,808.67
  5. Step 5: Solve for x
    x = 592,575,584,808.67/873,567.72
  6. Step 6: Final answer
    x = 678,339.61

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Double scale
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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.