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Finding the Fourth Proportional to 692,645.24, 955,841.14 and 386,726.32

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Solution

The fourth proportional to 692,645.24, 955,841.14 and 386,726.32 is: 533,677.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,645.24 : 955,841.14 = 386,726.32 : x
  2. Step 2: Convert to fraction form
    692,645.24/955,841.14 = 386,726.32/x
  3. Step 3: Cross multiply
    692,645.24x = 955,841.14 × 386,726.32
  4. Step 4: Simplify right side
    692,645.24x = 369,648,926,576.81
  5. Step 5: Solve for x
    x = 369,648,926,576.81/692,645.24
  6. Step 6: Final answer
    x = 533,677.13

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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.