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Finding the Fourth Proportional to 525,409.40, 787,595.70 and 209,444.60

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Solution

The fourth proportional to 525,409.40, 787,595.70 and 209,444.60 is: 313,960.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,409.40 : 787,595.70 = 209,444.60 : x
  2. Step 2: Convert to fraction form
    525,409.40/787,595.70 = 209,444.60/x
  3. Step 3: Cross multiply
    525,409.40x = 787,595.70 × 209,444.60
  4. Step 4: Simplify right side
    525,409.40x = 164,957,666,348.22
  5. Step 5: Solve for x
    x = 164,957,666,348.22/525,409.40
  6. Step 6: Final answer
    x = 313,960.25

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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.