Home / 878,411.40-1,314,701.10-637,841.40

Finding the Fourth Proportional to 878,411.40, 1,314,701.10 and 637,841.40

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Solution

The fourth proportional to 878,411.40, 1,314,701.10 and 637,841.40 is: 954,644.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,411.40 : 1,314,701.10 = 637,841.40 : x
  2. Step 2: Convert to fraction form
    878,411.40/1,314,701.10 = 637,841.40/x
  3. Step 3: Cross multiply
    878,411.40x = 1,314,701.10 × 637,841.40
  4. Step 4: Simplify right side
    878,411.40x = 838,570,790,205.54
  5. Step 5: Solve for x
    x = 838,570,790,205.54/878,411.40
  6. Step 6: Final answer
    x = 954,644.70

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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.