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Finding the Fourth Proportional to 609,637.08, 841,709.96 and 380,543.16

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Solution

The fourth proportional to 609,637.08, 841,709.96 and 380,543.16 is: 525,405.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,637.08 : 841,709.96 = 380,543.16 : x
  2. Step 2: Convert to fraction form
    609,637.08/841,709.96 = 380,543.16/x
  3. Step 3: Cross multiply
    609,637.08x = 841,709.96 × 380,543.16
  4. Step 4: Simplify right side
    609,637.08x = 320,306,967,981.87
  5. Step 5: Solve for x
    x = 320,306,967,981.87/609,637.08
  6. Step 6: Final answer
    x = 525,405.98

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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.