Home / 527,017.79-727,284.39-285,300.18

Finding the Fourth Proportional to 527,017.79, 727,284.39 and 285,300.18

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Solution

The fourth proportional to 527,017.79, 727,284.39 and 285,300.18 is: 393,714.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,017.79 : 727,284.39 = 285,300.18 : x
  2. Step 2: Convert to fraction form
    527,017.79/727,284.39 = 285,300.18/x
  3. Step 3: Cross multiply
    527,017.79x = 727,284.39 × 285,300.18
  4. Step 4: Simplify right side
    527,017.79x = 207,494,367,378.19
  5. Step 5: Solve for x
    x = 207,494,367,378.19/527,017.79
  6. Step 6: Final answer
    x = 393,714.17

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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.