Home / 930,019.86-1,283,338.76-522,028.19

Finding the Fourth Proportional to 930,019.86, 1,283,338.76 and 522,028.19

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Solution

The fourth proportional to 930,019.86, 1,283,338.76 and 522,028.19 is: 720,349.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,019.86 : 1,283,338.76 = 522,028.19 : x
  2. Step 2: Convert to fraction form
    930,019.86/1,283,338.76 = 522,028.19/x
  3. Step 3: Cross multiply
    930,019.86x = 1,283,338.76 × 522,028.19
  4. Step 4: Simplify right side
    930,019.86x = 669,939,010,637.85
  5. Step 5: Solve for x
    x = 669,939,010,637.85/930,019.86
  6. Step 6: Final answer
    x = 720,349.14

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.