Home / 630,153.60-945,844.80-314,966.40

Finding the Fourth Proportional to 630,153.60, 945,844.80 and 314,966.40

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Solution

The fourth proportional to 630,153.60, 945,844.80 and 314,966.40 is: 472,756.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,153.60 : 945,844.80 = 314,966.40 : x
  2. Step 2: Convert to fraction form
    630,153.60/945,844.80 = 314,966.40/x
  3. Step 3: Cross multiply
    630,153.60x = 945,844.80 × 314,966.40
  4. Step 4: Simplify right side
    630,153.60x = 297,909,331,614.72
  5. Step 5: Solve for x
    x = 297,909,331,614.72/630,153.60
  6. Step 6: Final answer
    x = 472,756.69

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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.