Home / 865,623.60-1,298,435.40-510,807.60

Finding the Fourth Proportional to 865,623.60, 1,298,435.40 and 510,807.60

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Solution

The fourth proportional to 865,623.60, 1,298,435.40 and 510,807.60 is: 766,211.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,623.60 : 1,298,435.40 = 510,807.60 : x
  2. Step 2: Convert to fraction form
    865,623.60/1,298,435.40 = 510,807.60/x
  3. Step 3: Cross multiply
    865,623.60x = 1,298,435.40 × 510,807.60
  4. Step 4: Simplify right side
    865,623.60x = 663,250,670,429.04
  5. Step 5: Solve for x
    x = 663,250,670,429.04/865,623.60
  6. Step 6: Final answer
    x = 766,211.40

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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.