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Finding the Fourth Proportional to 710,966.86, 981,145.93 and 424,511.98

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Solution

The fourth proportional to 710,966.86, 981,145.93 and 424,511.98 is: 585,833.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,966.86 : 981,145.93 = 424,511.98 : x
  2. Step 2: Convert to fraction form
    710,966.86/981,145.93 = 424,511.98/x
  3. Step 3: Cross multiply
    710,966.86x = 981,145.93 × 424,511.98
  4. Step 4: Simplify right side
    710,966.86x = 416,508,201,413.24
  5. Step 5: Solve for x
    x = 416,508,201,413.24/710,966.86
  6. Step 6: Final answer
    x = 585,833.50

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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.