Home / 1,113,643.40-1,670,465.10-403,694.60

Finding the Fourth Proportional to 1,113,643.40, 1,670,465.10 and 403,694.60

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Solution

The fourth proportional to 1,113,643.40, 1,670,465.10 and 403,694.60 is: 605,541.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,643.40 : 1,670,465.10 = 403,694.60 : x
  2. Step 2: Convert to fraction form
    1,113,643.40/1,670,465.10 = 403,694.60/x
  3. Step 3: Cross multiply
    1,113,643.40x = 1,670,465.10 × 403,694.60
  4. Step 4: Simplify right side
    1,113,643.40x = 674,357,740,358.46
  5. Step 5: Solve for x
    x = 674,357,740,358.46/1,113,643.40
  6. Step 6: Final answer
    x = 605,541.90

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Double scale
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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.