Home / 881,303.76-1,216,200.40-499,356.32

Finding the Fourth Proportional to 881,303.76, 1,216,200.40 and 499,356.32

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Solution

The fourth proportional to 881,303.76, 1,216,200.40 and 499,356.32 is: 689,112.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,303.76 : 1,216,200.40 = 499,356.32 : x
  2. Step 2: Convert to fraction form
    881,303.76/1,216,200.40 = 499,356.32/x
  3. Step 3: Cross multiply
    881,303.76x = 1,216,200.40 × 499,356.32
  4. Step 4: Simplify right side
    881,303.76x = 607,317,356,126.53
  5. Step 5: Solve for x
    x = 607,317,356,126.53/881,303.76
  6. Step 6: Final answer
    x = 689,112.41

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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.