Home / 438,109.02-604,650.96-256,865.58

Finding the Fourth Proportional to 438,109.02, 604,650.96 and 256,865.58

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Solution

The fourth proportional to 438,109.02, 604,650.96 and 256,865.58 is: 354,509.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,109.02 : 604,650.96 = 256,865.58 : x
  2. Step 2: Convert to fraction form
    438,109.02/604,650.96 = 256,865.58/x
  3. Step 3: Cross multiply
    438,109.02x = 604,650.96 × 256,865.58
  4. Step 4: Simplify right side
    438,109.02x = 155,314,019,537.96
  5. Step 5: Solve for x
    x = 155,314,019,537.96/438,109.02
  6. Step 6: Final answer
    x = 354,509.98

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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.