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Finding the Fourth Proportional to 623,719.32, 860,727.65 and 362,098.90

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Solution

The fourth proportional to 623,719.32, 860,727.65 and 362,098.90 is: 499,693.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,719.32 : 860,727.65 = 362,098.90 : x
  2. Step 2: Convert to fraction form
    623,719.32/860,727.65 = 362,098.90/x
  3. Step 3: Cross multiply
    623,719.32x = 860,727.65 × 362,098.90
  4. Step 4: Simplify right side
    623,719.32x = 311,668,535,264.59
  5. Step 5: Solve for x
    x = 311,668,535,264.59/623,719.32
  6. Step 6: Final answer
    x = 499,693.57

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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.