Home / 688,515.60-1,030,805.10-617,656.80

Finding the Fourth Proportional to 688,515.60, 1,030,805.10 and 617,656.80

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Solution

The fourth proportional to 688,515.60, 1,030,805.10 and 617,656.80 is: 924,719.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,515.60 : 1,030,805.10 = 617,656.80 : x
  2. Step 2: Convert to fraction form
    688,515.60/1,030,805.10 = 617,656.80/x
  3. Step 3: Cross multiply
    688,515.60x = 1,030,805.10 × 617,656.80
  4. Step 4: Simplify right side
    688,515.60x = 636,683,779,489.68
  5. Step 5: Solve for x
    x = 636,683,779,489.68/688,515.60
  6. Step 6: Final answer
    x = 924,719.47

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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.