Home / 993,143.50-1,370,538.03-540,437.74

Finding the Fourth Proportional to 993,143.50, 1,370,538.03 and 540,437.74

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Solution

The fourth proportional to 993,143.50, 1,370,538.03 and 540,437.74 is: 745,804.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,143.50 : 1,370,538.03 = 540,437.74 : x
  2. Step 2: Convert to fraction form
    993,143.50/1,370,538.03 = 540,437.74/x
  3. Step 3: Cross multiply
    993,143.50x = 1,370,538.03 × 540,437.74
  4. Step 4: Simplify right side
    993,143.50x = 740,690,475,517.25
  5. Step 5: Solve for x
    x = 740,690,475,517.25/993,143.50
  6. Step 6: Final answer
    x = 745,804.08

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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.