Home / 683,013.74-942,560.42-377,090.78

Finding the Fourth Proportional to 683,013.74, 942,560.42 and 377,090.78

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Solution

The fourth proportional to 683,013.74, 942,560.42 and 377,090.78 is: 520,386.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,013.74 : 942,560.42 = 377,090.78 : x
  2. Step 2: Convert to fraction form
    683,013.74/942,560.42 = 377,090.78/x
  3. Step 3: Cross multiply
    683,013.74x = 942,560.42 × 377,090.78
  4. Step 4: Simplify right side
    683,013.74x = 355,430,837,376.67
  5. Step 5: Solve for x
    x = 355,430,837,376.67/683,013.74
  6. Step 6: Final answer
    x = 520,386.08

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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.