Home / 860,219.73-1,187,152.47-478,271.12

Finding the Fourth Proportional to 860,219.73, 1,187,152.47 and 478,271.12

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Solution

The fourth proportional to 860,219.73, 1,187,152.47 and 478,271.12 is: 660,041.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,219.73 : 1,187,152.47 = 478,271.12 : x
  2. Step 2: Convert to fraction form
    860,219.73/1,187,152.47 = 478,271.12/x
  3. Step 3: Cross multiply
    860,219.73x = 1,187,152.47 × 478,271.12
  4. Step 4: Simplify right side
    860,219.73x = 567,780,741,437.67
  5. Step 5: Solve for x
    x = 567,780,741,437.67/860,219.73
  6. Step 6: Final answer
    x = 660,041.52

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Double scale
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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.