Home / 1,119,905.40-1,679,858.10-409,697.40

Finding the Fourth Proportional to 1,119,905.40, 1,679,858.10 and 409,697.40

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Solution

The fourth proportional to 1,119,905.40, 1,679,858.10 and 409,697.40 is: 614,546.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,905.40 : 1,679,858.10 = 409,697.40 : x
  2. Step 2: Convert to fraction form
    1,119,905.40/1,679,858.10 = 409,697.40/x
  3. Step 3: Cross multiply
    1,119,905.40x = 1,679,858.10 × 409,697.40
  4. Step 4: Simplify right side
    1,119,905.40x = 688,233,495,938.94
  5. Step 5: Solve for x
    x = 688,233,495,938.94/1,119,905.40
  6. Step 6: Final answer
    x = 614,546.10

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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.