Home / 986,278.16-1,361,023.08-623,899.28

Finding the Fourth Proportional to 986,278.16, 1,361,023.08 and 623,899.28

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Solution

The fourth proportional to 986,278.16, 1,361,023.08 and 623,899.28 is: 860,955.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,278.16 : 1,361,023.08 = 623,899.28 : x
  2. Step 2: Convert to fraction form
    986,278.16/1,361,023.08 = 623,899.28/x
  3. Step 3: Cross multiply
    986,278.16x = 1,361,023.08 × 623,899.28
  4. Step 4: Simplify right side
    986,278.16x = 849,141,319,675.38
  5. Step 5: Solve for x
    x = 849,141,319,675.38/986,278.16
  6. Step 6: Final answer
    x = 860,955.21

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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.