Home / 778,266.60-1,167,399.90-620,802.60

Finding the Fourth Proportional to 778,266.60, 1,167,399.90 and 620,802.60

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Solution

The fourth proportional to 778,266.60, 1,167,399.90 and 620,802.60 is: 931,203.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,266.60 : 1,167,399.90 = 620,802.60 : x
  2. Step 2: Convert to fraction form
    778,266.60/1,167,399.90 = 620,802.60/x
  3. Step 3: Cross multiply
    778,266.60x = 1,167,399.90 × 620,802.60
  4. Step 4: Simplify right side
    778,266.60x = 724,724,893,159.74
  5. Step 5: Solve for x
    x = 724,724,893,159.74/778,266.60
  6. Step 6: Final answer
    x = 931,203.90

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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.