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Finding the Fourth Proportional to 620,330.79, 930,560.28 and 171,051.74

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Solution

The fourth proportional to 620,330.79, 930,560.28 and 171,051.74 is: 256,595.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,330.79 : 930,560.28 = 171,051.74 : x
  2. Step 2: Convert to fraction form
    620,330.79/930,560.28 = 171,051.74/x
  3. Step 3: Cross multiply
    620,330.79x = 930,560.28 × 171,051.74
  4. Step 4: Simplify right side
    620,330.79x = 159,173,955,068.89
  5. Step 5: Solve for x
    x = 159,173,955,068.89/620,330.79
  6. Step 6: Final answer
    x = 256,595.28

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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.