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Finding the Fourth Proportional to 546,507.62, 753,981.74 and 316,938.24

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Solution

The fourth proportional to 546,507.62, 753,981.74 and 316,938.24 is: 437,259.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,507.62 : 753,981.74 = 316,938.24 : x
  2. Step 2: Convert to fraction form
    546,507.62/753,981.74 = 316,938.24/x
  3. Step 3: Cross multiply
    546,507.62x = 753,981.74 × 316,938.24
  4. Step 4: Simplify right side
    546,507.62x = 238,965,645,667.74
  5. Step 5: Solve for x
    x = 238,965,645,667.74/546,507.62
  6. Step 6: Final answer
    x = 437,259.49

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Double scale
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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.