Home / 1,210,188.02-1,670,045.75-666,312.70

Finding the Fourth Proportional to 1,210,188.02, 1,670,045.75 and 666,312.70

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Solution

The fourth proportional to 1,210,188.02, 1,670,045.75 and 666,312.70 is: 919,503.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,188.02 : 1,670,045.75 = 666,312.70 : x
  2. Step 2: Convert to fraction form
    1,210,188.02/1,670,045.75 = 666,312.70/x
  3. Step 3: Cross multiply
    1,210,188.02x = 1,670,045.75 × 666,312.70
  4. Step 4: Simplify right side
    1,210,188.02x = 1,112,772,692,806.02
  5. Step 5: Solve for x
    x = 1,112,772,692,806.02/1,210,188.02
  6. Step 6: Final answer
    x = 919,503.97

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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.