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Finding the Fourth Proportional to 514,693.14, 710,106.28 and 310,666.56

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Solution

The fourth proportional to 514,693.14, 710,106.28 and 310,666.56 is: 428,617.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,693.14 : 710,106.28 = 310,666.56 : x
  2. Step 2: Convert to fraction form
    514,693.14/710,106.28 = 310,666.56/x
  3. Step 3: Cross multiply
    514,693.14x = 710,106.28 × 310,666.56
  4. Step 4: Simplify right side
    514,693.14x = 220,606,275,242.00
  5. Step 5: Solve for x
    x = 220,606,275,242.00/514,693.14
  6. Step 6: Final answer
    x = 428,617.09

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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.