Home / 1,111,210.40-1,666,815.60-401,261.60

Finding the Fourth Proportional to 1,111,210.40, 1,666,815.60 and 401,261.60

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Solution

The fourth proportional to 1,111,210.40, 1,666,815.60 and 401,261.60 is: 601,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,210.40 : 1,666,815.60 = 401,261.60 : x
  2. Step 2: Convert to fraction form
    1,111,210.40/1,666,815.60 = 401,261.60/x
  3. Step 3: Cross multiply
    1,111,210.40x = 1,666,815.60 × 401,261.60
  4. Step 4: Simplify right side
    1,111,210.40x = 668,829,094,560.96
  5. Step 5: Solve for x
    x = 668,829,094,560.96/1,111,210.40
  6. Step 6: Final answer
    x = 601,892.40

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Double scale
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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.