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Finding the Fourth Proportional to 876,051.64, 1,208,953.02 and 473,643.64

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Solution

The fourth proportional to 876,051.64, 1,208,953.02 and 473,643.64 is: 653,629.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,051.64 : 1,208,953.02 = 473,643.64 : x
  2. Step 2: Convert to fraction form
    876,051.64/1,208,953.02 = 473,643.64/x
  3. Step 3: Cross multiply
    876,051.64x = 1,208,953.02 × 473,643.64
  4. Step 4: Simplify right side
    876,051.64x = 572,612,908,981.79
  5. Step 5: Solve for x
    x = 572,612,908,981.79/876,051.64
  6. Step 6: Final answer
    x = 653,629.17

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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.