Home / 910,854.40-1,366,281.60-279,686.20

Finding the Fourth Proportional to 910,854.40, 1,366,281.60 and 279,686.20

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Solution

The fourth proportional to 910,854.40, 1,366,281.60 and 279,686.20 is: 419,529.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,854.40 : 1,366,281.60 = 279,686.20 : x
  2. Step 2: Convert to fraction form
    910,854.40/1,366,281.60 = 279,686.20/x
  3. Step 3: Cross multiply
    910,854.40x = 1,366,281.60 × 279,686.20
  4. Step 4: Simplify right side
    910,854.40x = 382,130,108,833.92
  5. Step 5: Solve for x
    x = 382,130,108,833.92/910,854.40
  6. Step 6: Final answer
    x = 419,529.30

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Double scale
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Similar ratio
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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.