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Finding the Fourth Proportional to 515,031.06, 710,751.38 and 285,598.04

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Solution

The fourth proportional to 515,031.06, 710,751.38 and 285,598.04 is: 394,130.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,031.06 : 710,751.38 = 285,598.04 : x
  2. Step 2: Convert to fraction form
    515,031.06/710,751.38 = 285,598.04/x
  3. Step 3: Cross multiply
    515,031.06x = 710,751.38 × 285,598.04
  4. Step 4: Simplify right side
    515,031.06x = 202,989,196,073.55
  5. Step 5: Solve for x
    x = 202,989,196,073.55/515,031.06
  6. Step 6: Final answer
    x = 394,130.01

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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.