Home / 1,065,355.80-1,598,033.70-391,145.39

Finding the Fourth Proportional to 1,065,355.80, 1,598,033.70 and 391,145.39

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Solution

The fourth proportional to 1,065,355.80, 1,598,033.70 and 391,145.39 is: 586,718.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,355.80 : 1,598,033.70 = 391,145.39 : x
  2. Step 2: Convert to fraction form
    1,065,355.80/1,598,033.70 = 391,145.39/x
  3. Step 3: Cross multiply
    1,065,355.80x = 1,598,033.70 × 391,145.39
  4. Step 4: Simplify right side
    1,065,355.80x = 625,063,507,663.62
  5. Step 5: Solve for x
    x = 625,063,507,663.62/1,065,355.80
  6. Step 6: Final answer
    x = 586,718.08

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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.