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Finding the Fourth Proportional to 713,507.40, 1,070,261.10 and 476,963.40

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Solution

The fourth proportional to 713,507.40, 1,070,261.10 and 476,963.40 is: 715,445.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,507.40 : 1,070,261.10 = 476,963.40 : x
  2. Step 2: Convert to fraction form
    713,507.40/1,070,261.10 = 476,963.40/x
  3. Step 3: Cross multiply
    713,507.40x = 1,070,261.10 × 476,963.40
  4. Step 4: Simplify right side
    713,507.40x = 510,475,373,143.74
  5. Step 5: Solve for x
    x = 510,475,373,143.74/713,507.40
  6. Step 6: Final answer
    x = 715,445.10

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1.5x scale

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.