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Finding the Fourth Proportional to 713,497.40, 1,070,246.10 and 476,953.40

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Solution

The fourth proportional to 713,497.40, 1,070,246.10 and 476,953.40 is: 715,430.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,497.40 : 1,070,246.10 = 476,953.40 : x
  2. Step 2: Convert to fraction form
    713,497.40/1,070,246.10 = 476,953.40/x
  3. Step 3: Cross multiply
    713,497.40x = 1,070,246.10 × 476,953.40
  4. Step 4: Simplify right side
    713,497.40x = 510,457,516,231.74
  5. Step 5: Solve for x
    x = 510,457,516,231.74/713,497.40
  6. Step 6: Final answer
    x = 715,430.10

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Similar ratio
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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.