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Finding the Fourth Proportional to 914,807.16, 1,262,461.58 and 506,870.84

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Solution

The fourth proportional to 914,807.16, 1,262,461.58 and 506,870.84 is: 699,497.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,807.16 : 1,262,461.58 = 506,870.84 : x
  2. Step 2: Convert to fraction form
    914,807.16/1,262,461.58 = 506,870.84/x
  3. Step 3: Cross multiply
    914,807.16x = 1,262,461.58 × 506,870.84
  4. Step 4: Simplify right side
    914,807.16x = 639,904,961,522.33
  5. Step 5: Solve for x
    x = 639,904,961,522.33/914,807.16
  6. Step 6: Final answer
    x = 699,497.11

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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.