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Finding the Fourth Proportional to 707,194.80, 975,920.40 and 384,901.20

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Solution

The fourth proportional to 707,194.80, 975,920.40 and 384,901.20 is: 531,159.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,194.80 : 975,920.40 = 384,901.20 : x
  2. Step 2: Convert to fraction form
    707,194.80/975,920.40 = 384,901.20/x
  3. Step 3: Cross multiply
    707,194.80x = 975,920.40 × 384,901.20
  4. Step 4: Simplify right side
    707,194.80x = 375,632,933,064.48
  5. Step 5: Solve for x
    x = 375,632,933,064.48/707,194.80
  6. Step 6: Final answer
    x = 531,159.07

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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.