Home / 772,821.03-1,065,260.72-609,210.63

Finding the Fourth Proportional to 772,821.03, 1,065,260.72 and 609,210.63

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Solution

The fourth proportional to 772,821.03, 1,065,260.72 and 609,210.63 is: 839,739.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,821.03 : 1,065,260.72 = 609,210.63 : x
  2. Step 2: Convert to fraction form
    772,821.03/1,065,260.72 = 609,210.63/x
  3. Step 3: Cross multiply
    772,821.03x = 1,065,260.72 × 609,210.63
  4. Step 4: Simplify right side
    772,821.03x = 648,968,151,299.40
  5. Step 5: Solve for x
    x = 648,968,151,299.40/772,821.03
  6. Step 6: Final answer
    x = 839,739.25

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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.