Home / 830,658.30-1,245,987.45-547,223.10

Finding the Fourth Proportional to 830,658.30, 1,245,987.45 and 547,223.10

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Solution

The fourth proportional to 830,658.30, 1,245,987.45 and 547,223.10 is: 820,834.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,658.30 : 1,245,987.45 = 547,223.10 : x
  2. Step 2: Convert to fraction form
    830,658.30/1,245,987.45 = 547,223.10/x
  3. Step 3: Cross multiply
    830,658.30x = 1,245,987.45 × 547,223.10
  4. Step 4: Simplify right side
    830,658.30x = 681,833,114,950.10
  5. Step 5: Solve for x
    x = 681,833,114,950.10/830,658.30
  6. Step 6: Final answer
    x = 820,834.65

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Double scale
Find fourth proportional to 830,659.30, 1,245,988.95 and 547,224.10
Similar ratio
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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.