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Finding the Fourth Proportional to 609,509.60, 912,514.80 and 373,313.60

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Solution

The fourth proportional to 609,509.60, 912,514.80 and 373,313.60 is: 558,898.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,509.60 : 912,514.80 = 373,313.60 : x
  2. Step 2: Convert to fraction form
    609,509.60/912,514.80 = 373,313.60/x
  3. Step 3: Cross multiply
    609,509.60x = 912,514.80 × 373,313.60
  4. Step 4: Simplify right side
    609,509.60x = 340,654,185,041.28
  5. Step 5: Solve for x
    x = 340,654,185,041.28/609,509.60
  6. Step 6: Final answer
    x = 558,898.80

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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.