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Finding the Fourth Proportional to 570,164.31, 786,827.05 and 312,041.10

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Solution

The fourth proportional to 570,164.31, 786,827.05 and 312,041.10 is: 430,616.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,164.31 : 786,827.05 = 312,041.10 : x
  2. Step 2: Convert to fraction form
    570,164.31/786,827.05 = 312,041.10/x
  3. Step 3: Cross multiply
    570,164.31x = 786,827.05 × 312,041.10
  4. Step 4: Simplify right side
    570,164.31x = 245,522,378,191.76
  5. Step 5: Solve for x
    x = 245,522,378,191.76/570,164.31
  6. Step 6: Final answer
    x = 430,616.88

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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.