Home / 438,319.62-657,084.69-157,639.50

Finding the Fourth Proportional to 438,319.62, 657,084.69 and 157,639.50

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Solution

The fourth proportional to 438,319.62, 657,084.69 and 157,639.50 is: 236,317.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,319.62 : 657,084.69 = 157,639.50 : x
  2. Step 2: Convert to fraction form
    438,319.62/657,084.69 = 157,639.50/x
  3. Step 3: Cross multiply
    438,319.62x = 657,084.69 × 157,639.50
  4. Step 4: Simplify right side
    438,319.62x = 103,582,501,989.26
  5. Step 5: Solve for x
    x = 103,582,501,989.26/438,319.62
  6. Step 6: Final answer
    x = 236,317.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.