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Finding the Fourth Proportional to 710,055.20, 1,064,564.40 and 289,114.40

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Solution

The fourth proportional to 710,055.20, 1,064,564.40 and 289,114.40 is: 433,460.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,055.20 : 1,064,564.40 = 289,114.40 : x
  2. Step 2: Convert to fraction form
    710,055.20/1,064,564.40 = 289,114.40/x
  3. Step 3: Cross multiply
    710,055.20x = 1,064,564.40 × 289,114.40
  4. Step 4: Simplify right side
    710,055.20x = 307,780,897,767.36
  5. Step 5: Solve for x
    x = 307,780,897,767.36/710,055.20
  6. Step 6: Final answer
    x = 433,460.52

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