Home / 889,030.68-1,226,730.25-539,989.39

Finding the Fourth Proportional to 889,030.68, 1,226,730.25 and 539,989.39

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Solution

The fourth proportional to 889,030.68, 1,226,730.25 and 539,989.39 is: 745,105.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,030.68 : 1,226,730.25 = 539,989.39 : x
  2. Step 2: Convert to fraction form
    889,030.68/1,226,730.25 = 539,989.39/x
  3. Step 3: Cross multiply
    889,030.68x = 1,226,730.25 × 539,989.39
  4. Step 4: Simplify right side
    889,030.68x = 662,421,319,392.05
  5. Step 5: Solve for x
    x = 662,421,319,392.05/889,030.68
  6. Step 6: Final answer
    x = 745,105.13

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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.