Home / 909,212.79-1,254,199.89-569,090.55

Finding the Fourth Proportional to 909,212.79, 1,254,199.89 and 569,090.55

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Solution

The fourth proportional to 909,212.79, 1,254,199.89 and 569,090.55 is: 785,023.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,212.79 : 1,254,199.89 = 569,090.55 : x
  2. Step 2: Convert to fraction form
    909,212.79/1,254,199.89 = 569,090.55/x
  3. Step 3: Cross multiply
    909,212.79x = 1,254,199.89 × 569,090.55
  4. Step 4: Simplify right side
    909,212.79x = 713,753,305,210.04
  5. Step 5: Solve for x
    x = 713,753,305,210.04/909,212.79
  6. Step 6: Final answer
    x = 785,023.39

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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.