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Finding the Fourth Proportional to 519,027.30, 716,256.68 and 289,570.93

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Solution

The fourth proportional to 519,027.30, 716,256.68 and 289,570.93 is: 399,607.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,027.30 : 716,256.68 = 289,570.93 : x
  2. Step 2: Convert to fraction form
    519,027.30/716,256.68 = 289,570.93/x
  3. Step 3: Cross multiply
    519,027.30x = 716,256.68 × 289,570.93
  4. Step 4: Simplify right side
    519,027.30x = 207,407,114,058.34
  5. Step 5: Solve for x
    x = 207,407,114,058.34/519,027.30
  6. Step 6: Final answer
    x = 399,607.33

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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.