Home / 928,893.14-1,281,748.47-515,423.06

Finding the Fourth Proportional to 928,893.14, 1,281,748.47 and 515,423.06

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Solution

The fourth proportional to 928,893.14, 1,281,748.47 and 515,423.06 is: 711,214.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,893.14 : 1,281,748.47 = 515,423.06 : x
  2. Step 2: Convert to fraction form
    928,893.14/1,281,748.47 = 515,423.06/x
  3. Step 3: Cross multiply
    928,893.14x = 1,281,748.47 × 515,423.06
  4. Step 4: Simplify right side
    928,893.14x = 660,642,718,557.72
  5. Step 5: Solve for x
    x = 660,642,718,557.72/928,893.14
  6. Step 6: Final answer
    x = 711,214.98

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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.