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Finding the Fourth Proportional to 692,289.35, 955,264.83 and 386,326.67

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Solution

The fourth proportional to 692,289.35, 955,264.83 and 386,326.67 is: 533,078.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,289.35 : 955,264.83 = 386,326.67 : x
  2. Step 2: Convert to fraction form
    692,289.35/955,264.83 = 386,326.67/x
  3. Step 3: Cross multiply
    692,289.35x = 955,264.83 × 386,326.67
  4. Step 4: Simplify right side
    692,289.35x = 369,044,274,516.97
  5. Step 5: Solve for x
    x = 369,044,274,516.97/692,289.35
  6. Step 6: Final answer
    x = 533,078.08

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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.