Home / 890,567.04-1,230,160.32-663,818.88

Finding the Fourth Proportional to 890,567.04, 1,230,160.32 and 663,818.88

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Solution

The fourth proportional to 890,567.04, 1,230,160.32 and 663,818.88 is: 916,947.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,567.04 : 1,230,160.32 = 663,818.88 : x
  2. Step 2: Convert to fraction form
    890,567.04/1,230,160.32 = 663,818.88/x
  3. Step 3: Cross multiply
    890,567.04x = 1,230,160.32 × 663,818.88
  4. Step 4: Simplify right side
    890,567.04x = 816,603,645,842.84
  5. Step 5: Solve for x
    x = 816,603,645,842.84/890,567.04
  6. Step 6: Final answer
    x = 916,947.98

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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.