Home / 438,176.81-604,784.88-256,947.12

Finding the Fourth Proportional to 438,176.81, 604,784.88 and 256,947.12

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Solution

The fourth proportional to 438,176.81, 604,784.88 and 256,947.12 is: 354,646.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,176.81 : 604,784.88 = 256,947.12 : x
  2. Step 2: Convert to fraction form
    438,176.81/604,784.88 = 256,947.12/x
  3. Step 3: Cross multiply
    438,176.81x = 604,784.88 × 256,947.12
  4. Step 4: Simplify right side
    438,176.81x = 155,397,733,135.55
  5. Step 5: Solve for x
    x = 155,397,733,135.55/438,176.81
  6. Step 6: Final answer
    x = 354,646.19

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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.