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Finding the Fourth Proportional to 334,637.70, 501,956.55 and 319,085.70

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Solution

The fourth proportional to 334,637.70, 501,956.55 and 319,085.70 is: 478,628.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,637.70 : 501,956.55 = 319,085.70 : x
  2. Step 2: Convert to fraction form
    334,637.70/501,956.55 = 319,085.70/x
  3. Step 3: Cross multiply
    334,637.70x = 501,956.55 × 319,085.70
  4. Step 4: Simplify right side
    334,637.70x = 160,167,157,126.34
  5. Step 5: Solve for x
    x = 160,167,157,126.34/334,637.70
  6. Step 6: Final answer
    x = 478,628.55

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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.