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Finding the Fourth Proportional to 674,683.53, 931,097.93 and 388,246.47

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Solution

The fourth proportional to 674,683.53, 931,097.93 and 388,246.47 is: 535,800.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,683.53 : 931,097.93 = 388,246.47 : x
  2. Step 2: Convert to fraction form
    674,683.53/931,097.93 = 388,246.47/x
  3. Step 3: Cross multiply
    674,683.53x = 931,097.93 × 388,246.47
  4. Step 4: Simplify right side
    674,683.53x = 361,495,484,546.81
  5. Step 5: Solve for x
    x = 361,495,484,546.81/674,683.53
  6. Step 6: Final answer
    x = 535,800.07

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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.