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Finding the Fourth Proportional to 983,374.60, 1,473,117.90 and 866,475.40

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Solution

The fourth proportional to 983,374.60, 1,473,117.90 and 866,475.40 is: 1,298,000.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,374.60 : 1,473,117.90 = 866,475.40 : x
  2. Step 2: Convert to fraction form
    983,374.60/1,473,117.90 = 866,475.40/x
  3. Step 3: Cross multiply
    983,374.60x = 1,473,117.90 × 866,475.40
  4. Step 4: Simplify right side
    983,374.60x = 1,276,420,421,649.66
  5. Step 5: Solve for x
    x = 1,276,420,421,649.66/983,374.60
  6. Step 6: Final answer
    x = 1,298,000.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.