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Finding the Fourth Proportional to 707,377.86, 974,321.26 and 543,721.01

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Solution

The fourth proportional to 707,377.86, 974,321.26 and 543,721.01 is: 748,905.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,377.86 : 974,321.26 = 543,721.01 : x
  2. Step 2: Convert to fraction form
    707,377.86/974,321.26 = 543,721.01/x
  3. Step 3: Cross multiply
    707,377.86x = 974,321.26 × 543,721.01
  4. Step 4: Simplify right side
    707,377.86x = 529,758,933,320.76
  5. Step 5: Solve for x
    x = 529,758,933,320.76/707,377.86
  6. Step 6: Final answer
    x = 748,905.17

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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.