Home / 929,665.56-1,282,885.74-521,729.40

Finding the Fourth Proportional to 929,665.56, 1,282,885.74 and 521,729.40

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Solution

The fourth proportional to 929,665.56, 1,282,885.74 and 521,729.40 is: 719,956.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,665.56 : 1,282,885.74 = 521,729.40 : x
  2. Step 2: Convert to fraction form
    929,665.56/1,282,885.74 = 521,729.40/x
  3. Step 3: Cross multiply
    929,665.56x = 1,282,885.74 × 521,729.40
  4. Step 4: Simplify right side
    929,665.56x = 669,319,207,398.76
  5. Step 5: Solve for x
    x = 669,319,207,398.76/929,665.56
  6. Step 6: Final answer
    x = 719,956.98

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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.