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Finding the Fourth Proportional to 781,326.40, 1,096,068.80 and 781,326.40

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Solution

The fourth proportional to 781,326.40, 1,096,068.80 and 781,326.40 is: 1,096,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,326.40 : 1,096,068.80 = 781,326.40 : x
  2. Step 2: Convert to fraction form
    781,326.40/1,096,068.80 = 781,326.40/x
  3. Step 3: Cross multiply
    781,326.40x = 1,096,068.80 × 781,326.40
  4. Step 4: Simplify right side
    781,326.40x = 856,387,489,656.32
  5. Step 5: Solve for x
    x = 856,387,489,656.32/781,326.40
  6. Step 6: Final answer
    x = 1,096,068.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.