Home / 1,130,019.42-1,559,437.54-620,721.78

Finding the Fourth Proportional to 1,130,019.42, 1,559,437.54 and 620,721.78

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Solution

The fourth proportional to 1,130,019.42, 1,559,437.54 and 620,721.78 is: 856,601.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,019.42 : 1,559,437.54 = 620,721.78 : x
  2. Step 2: Convert to fraction form
    1,130,019.42/1,559,437.54 = 620,721.78/x
  3. Step 3: Cross multiply
    1,130,019.42x = 1,559,437.54 × 620,721.78
  4. Step 4: Simplify right side
    1,130,019.42x = 967,976,845,627.62
  5. Step 5: Solve for x
    x = 967,976,845,627.62/1,130,019.42
  6. Step 6: Final answer
    x = 856,601.96

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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.