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Finding the Fourth Proportional to 473,343.40, 710,015.10 and 286,719.40

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Solution

The fourth proportional to 473,343.40, 710,015.10 and 286,719.40 is: 430,079.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,343.40 : 710,015.10 = 286,719.40 : x
  2. Step 2: Convert to fraction form
    473,343.40/710,015.10 = 286,719.40/x
  3. Step 3: Cross multiply
    473,343.40x = 710,015.10 × 286,719.40
  4. Step 4: Simplify right side
    473,343.40x = 203,575,103,462.94
  5. Step 5: Solve for x
    x = 203,575,103,462.94/473,343.40
  6. Step 6: Final answer
    x = 430,079.10

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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.