Home / 1,284,065.40-1,924,715.70-485,038.20

Finding the Fourth Proportional to 1,284,065.40, 1,924,715.70 and 485,038.20

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Solution

The fourth proportional to 1,284,065.40, 1,924,715.70 and 485,038.20 is: 727,035.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,065.40 : 1,924,715.70 = 485,038.20 : x
  2. Step 2: Convert to fraction form
    1,284,065.40/1,924,715.70 = 485,038.20/x
  3. Step 3: Cross multiply
    1,284,065.40x = 1,924,715.70 × 485,038.20
  4. Step 4: Simplify right side
    1,284,065.40x = 933,560,638,639.74
  5. Step 5: Solve for x
    x = 933,560,638,639.74/1,284,065.40
  6. Step 6: Final answer
    x = 727,035.12

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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.