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Finding the Fourth Proportional to 519,248.59, 716,563.40 and 286,675.72

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Solution

The fourth proportional to 519,248.59, 716,563.40 and 286,675.72 is: 395,612.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,248.59 : 716,563.40 = 286,675.72 : x
  2. Step 2: Convert to fraction form
    519,248.59/716,563.40 = 286,675.72/x
  3. Step 3: Cross multiply
    519,248.59x = 716,563.40 × 286,675.72
  4. Step 4: Simplify right side
    519,248.59x = 205,421,325,395.86
  5. Step 5: Solve for x
    x = 205,421,325,395.86/519,248.59
  6. Step 6: Final answer
    x = 395,612.68

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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.