Home / 921,503.44-1,271,681-513,631.52

Finding the Fourth Proportional to 921,503.44, 1,271,681 and 513,631.52

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Solution

The fourth proportional to 921,503.44, 1,271,681 and 513,631.52 is: 708,814.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,503.44 : 1,271,681 = 513,631.52 : x
  2. Step 2: Convert to fraction form
    921,503.44/1,271,681 = 513,631.52/x
  3. Step 3: Cross multiply
    921,503.44x = 1,271,681 × 513,631.52
  4. Step 4: Simplify right side
    921,503.44x = 653,175,444,985.12
  5. Step 5: Solve for x
    x = 653,175,444,985.12/921,503.44
  6. Step 6: Final answer
    x = 708,814.98

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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.