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Finding the Fourth Proportional to 709,718.68, 976,925.78 and 618,914.44

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Solution

The fourth proportional to 709,718.68, 976,925.78 and 618,914.44 is: 851,934.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,718.68 : 976,925.78 = 618,914.44 : x
  2. Step 2: Convert to fraction form
    709,718.68/976,925.78 = 618,914.44/x
  3. Step 3: Cross multiply
    709,718.68x = 976,925.78 × 618,914.44
  4. Step 4: Simplify right side
    709,718.68x = 604,633,472,050.26
  5. Step 5: Solve for x
    x = 604,633,472,050.26/709,718.68
  6. Step 6: Final answer
    x = 851,934.00

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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.