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Finding the Fourth Proportional to 585,012.50, 877,518.76 and 141,780.50

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Solution

The fourth proportional to 585,012.50, 877,518.76 and 141,780.50 is: 212,670.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,012.50 : 877,518.76 = 141,780.50 : x
  2. Step 2: Convert to fraction form
    585,012.50/877,518.76 = 141,780.50/x
  3. Step 3: Cross multiply
    585,012.50x = 877,518.76 × 141,780.50
  4. Step 4: Simplify right side
    585,012.50x = 124,415,048,552.18
  5. Step 5: Solve for x
    x = 124,415,048,552.18/585,012.50
  6. Step 6: Final answer
    x = 212,670.75

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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.