Home / 1,155,905.40-1,733,858.10-407,854.20

Finding the Fourth Proportional to 1,155,905.40, 1,733,858.10 and 407,854.20

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Solution

The fourth proportional to 1,155,905.40, 1,733,858.10 and 407,854.20 is: 611,781.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,905.40 : 1,733,858.10 = 407,854.20 : x
  2. Step 2: Convert to fraction form
    1,155,905.40/1,733,858.10 = 407,854.20/x
  3. Step 3: Cross multiply
    1,155,905.40x = 1,733,858.10 × 407,854.20
  4. Step 4: Simplify right side
    1,155,905.40x = 707,161,308,289.02
  5. Step 5: Solve for x
    x = 707,161,308,289.02/1,155,905.40
  6. Step 6: Final answer
    x = 611,781.30

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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.