Home / 912,263.59-1,258,920.60-509,855.59

Finding the Fourth Proportional to 912,263.59, 1,258,920.60 and 509,855.59

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Solution

The fourth proportional to 912,263.59, 1,258,920.60 and 509,855.59 is: 703,598.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,263.59 : 1,258,920.60 = 509,855.59 : x
  2. Step 2: Convert to fraction form
    912,263.59/1,258,920.60 = 509,855.59/x
  3. Step 3: Cross multiply
    912,263.59x = 1,258,920.60 × 509,855.59
  4. Step 4: Simplify right side
    912,263.59x = 641,867,705,276.15
  5. Step 5: Solve for x
    x = 641,867,705,276.15/912,263.59
  6. Step 6: Final answer
    x = 703,598.95

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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.