Home / 685,477.77-945,824.90-430,681.34

Finding the Fourth Proportional to 685,477.77, 945,824.90 and 430,681.34

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Solution

The fourth proportional to 685,477.77, 945,824.90 and 430,681.34 is: 594,255.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,477.77 : 945,824.90 = 430,681.34 : x
  2. Step 2: Convert to fraction form
    685,477.77/945,824.90 = 430,681.34/x
  3. Step 3: Cross multiply
    685,477.77x = 945,824.90 × 430,681.34
  4. Step 4: Simplify right side
    685,477.77x = 407,349,128,454.84
  5. Step 5: Solve for x
    x = 407,349,128,454.84/685,477.77
  6. Step 6: Final answer
    x = 594,255.78

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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.