Home / 647,533.10-971,299.65-542,557.10

Finding the Fourth Proportional to 647,533.10, 971,299.65 and 542,557.10

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Solution

The fourth proportional to 647,533.10, 971,299.65 and 542,557.10 is: 813,835.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,533.10 : 971,299.65 = 542,557.10 : x
  2. Step 2: Convert to fraction form
    647,533.10/971,299.65 = 542,557.10/x
  3. Step 3: Cross multiply
    647,533.10x = 971,299.65 × 542,557.10
  4. Step 4: Simplify right side
    647,533.10x = 526,985,521,335.02
  5. Step 5: Solve for x
    x = 526,985,521,335.02/647,533.10
  6. Step 6: Final answer
    x = 813,835.65

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Similar ratio
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1.5x scale

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.