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Finding the Fourth Proportional to 692,786.64, 956,026.96 and 386,854.50

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Solution

The fourth proportional to 692,786.64, 956,026.96 and 386,854.50 is: 533,848.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,786.64 : 956,026.96 = 386,854.50 : x
  2. Step 2: Convert to fraction form
    692,786.64/956,026.96 = 386,854.50/x
  3. Step 3: Cross multiply
    692,786.64x = 956,026.96 × 386,854.50
  4. Step 4: Simplify right side
    692,786.64x = 369,843,331,597.32
  5. Step 5: Solve for x
    x = 369,843,331,597.32/692,786.64
  6. Step 6: Final answer
    x = 533,848.82

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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.