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Finding the Fourth Proportional to 710,174.64, 1,064,049.48 and 390,594

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Solution

The fourth proportional to 710,174.64, 1,064,049.48 and 390,594 is: 585,224.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,174.64 : 1,064,049.48 = 390,594 : x
  2. Step 2: Convert to fraction form
    710,174.64/1,064,049.48 = 390,594/x
  3. Step 3: Cross multiply
    710,174.64x = 1,064,049.48 × 390,594
  4. Step 4: Simplify right side
    710,174.64x = 415,611,342,591.12
  5. Step 5: Solve for x
    x = 415,611,342,591.12/710,174.64
  6. Step 6: Final answer
    x = 585,224.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.