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Finding the Fourth Proportional to 684,886.39, 944,928.98 and 413,037.43

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Solution

The fourth proportional to 684,886.39, 944,928.98 and 413,037.43 is: 569,862.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,886.39 : 944,928.98 = 413,037.43 : x
  2. Step 2: Convert to fraction form
    684,886.39/944,928.98 = 413,037.43/x
  3. Step 3: Cross multiply
    684,886.39x = 944,928.98 × 413,037.43
  4. Step 4: Simplify right side
    684,886.39x = 390,291,037,431.72
  5. Step 5: Solve for x
    x = 390,291,037,431.72/684,886.39
  6. Step 6: Final answer
    x = 569,862.45

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Double scale
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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.