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Finding the Fourth Proportional to 514,574.38, 710,112.64 and 313,370.38

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Solution

The fourth proportional to 514,574.38, 710,112.64 and 313,370.38 is: 432,451.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,574.38 : 710,112.64 = 313,370.38 : x
  2. Step 2: Convert to fraction form
    514,574.38/710,112.64 = 313,370.38/x
  3. Step 3: Cross multiply
    514,574.38x = 710,112.64 × 313,370.38
  4. Step 4: Simplify right side
    514,574.38x = 222,528,267,839.60
  5. Step 5: Solve for x
    x = 222,528,267,839.60/514,574.38
  6. Step 6: Final answer
    x = 432,451.12

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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.