Home / 991,895.56-1,368,830.86-556,409.42

Finding the Fourth Proportional to 991,895.56, 1,368,830.86 and 556,409.42

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Solution

The fourth proportional to 991,895.56, 1,368,830.86 and 556,409.42 is: 767,853.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,895.56 : 1,368,830.86 = 556,409.42 : x
  2. Step 2: Convert to fraction form
    991,895.56/1,368,830.86 = 556,409.42/x
  3. Step 3: Cross multiply
    991,895.56x = 1,368,830.86 × 556,409.42
  4. Step 4: Simplify right side
    991,895.56x = 761,630,384,890.70
  5. Step 5: Solve for x
    x = 761,630,384,890.70/991,895.56
  6. Step 6: Final answer
    x = 767,853.41

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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.