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Finding the Fourth Proportional to 1,249,503.84, 1,723,026.48 and 1,068,813.90

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Solution

The fourth proportional to 1,249,503.84, 1,723,026.48 and 1,068,813.90 is: 1,473,860.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,503.84 : 1,723,026.48 = 1,068,813.90 : x
  2. Step 2: Convert to fraction form
    1,249,503.84/1,723,026.48 = 1,068,813.90/x
  3. Step 3: Cross multiply
    1,249,503.84x = 1,723,026.48 × 1,068,813.90
  4. Step 4: Simplify right side
    1,249,503.84x = 1,841,594,651,892.07
  5. Step 5: Solve for x
    x = 1,841,594,651,892.07/1,249,503.84
  6. Step 6: Final answer
    x = 1,473,860.74

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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.