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Finding the Fourth Proportional to 719,368.70, 992,801.61 and 617,730.62

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Solution

The fourth proportional to 719,368.70, 992,801.61 and 617,730.62 is: 852,530.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,368.70 : 992,801.61 = 617,730.62 : x
  2. Step 2: Convert to fraction form
    719,368.70/992,801.61 = 617,730.62/x
  3. Step 3: Cross multiply
    719,368.70x = 992,801.61 × 617,730.62
  4. Step 4: Simplify right side
    719,368.70x = 613,283,949,118.29
  5. Step 5: Solve for x
    x = 613,283,949,118.29/719,368.70
  6. Step 6: Final answer
    x = 852,530.77

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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.