Home / 634,157.10-874,635.98-561,636.18

Finding the Fourth Proportional to 634,157.10, 874,635.98 and 561,636.18

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Solution

The fourth proportional to 634,157.10, 874,635.98 and 561,636.18 is: 774,614.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,157.10 : 874,635.98 = 561,636.18 : x
  2. Step 2: Convert to fraction form
    634,157.10/874,635.98 = 561,636.18/x
  3. Step 3: Cross multiply
    634,157.10x = 874,635.98 × 561,636.18
  4. Step 4: Simplify right side
    634,157.10x = 491,227,207,889.58
  5. Step 5: Solve for x
    x = 491,227,207,889.58/634,157.10
  6. Step 6: Final answer
    x = 774,614.38

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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.