Home / 877,773.38-1,211,225.13-490,589.60

Finding the Fourth Proportional to 877,773.38, 1,211,225.13 and 490,589.60

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Solution

The fourth proportional to 877,773.38, 1,211,225.13 and 490,589.60 is: 676,956.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,773.38 : 1,211,225.13 = 490,589.60 : x
  2. Step 2: Convert to fraction form
    877,773.38/1,211,225.13 = 490,589.60/x
  3. Step 3: Cross multiply
    877,773.38x = 1,211,225.13 × 490,589.60
  4. Step 4: Simplify right side
    877,773.38x = 594,214,445,980.52
  5. Step 5: Solve for x
    x = 594,214,445,980.52/877,773.38
  6. Step 6: Final answer
    x = 676,956.56

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Double scale
Find fourth proportional to 877,774.38, 1,211,226.51 and 490,590.60
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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.