Home / 879,111.40-1,319,444.70-753,140.20

Finding the Fourth Proportional to 879,111.40, 1,319,444.70 and 753,140.20

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Solution

The fourth proportional to 879,111.40, 1,319,444.70 and 753,140.20 is: 1,130,376.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,111.40 : 1,319,444.70 = 753,140.20 : x
  2. Step 2: Convert to fraction form
    879,111.40/1,319,444.70 = 753,140.20/x
  3. Step 3: Cross multiply
    879,111.40x = 1,319,444.70 × 753,140.20
  4. Step 4: Simplify right side
    879,111.40x = 993,726,845,246.94
  5. Step 5: Solve for x
    x = 993,726,845,246.94/879,111.40
  6. Step 6: Final answer
    x = 1,130,376.47

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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.