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Finding the Fourth Proportional to 586,055.80, 879,083.70 and 142,823.80

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Solution

The fourth proportional to 586,055.80, 879,083.70 and 142,823.80 is: 214,235.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,055.80 : 879,083.70 = 142,823.80 : x
  2. Step 2: Convert to fraction form
    586,055.80/879,083.70 = 142,823.80/x
  3. Step 3: Cross multiply
    586,055.80x = 879,083.70 × 142,823.80
  4. Step 4: Simplify right side
    586,055.80x = 125,554,074,552.06
  5. Step 5: Solve for x
    x = 125,554,074,552.06/586,055.80
  6. Step 6: Final answer
    x = 214,235.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.