Home / 688,457.60-950,068.40-382,583.76

Finding the Fourth Proportional to 688,457.60, 950,068.40 and 382,583.76

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Solution

The fourth proportional to 688,457.60, 950,068.40 and 382,583.76 is: 527,963.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,457.60 : 950,068.40 = 382,583.76 : x
  2. Step 2: Convert to fraction form
    688,457.60/950,068.40 = 382,583.76/x
  3. Step 3: Cross multiply
    688,457.60x = 950,068.40 × 382,583.76
  4. Step 4: Simplify right side
    688,457.60x = 363,480,740,729.18
  5. Step 5: Solve for x
    x = 363,480,740,729.18/688,457.60
  6. Step 6: Final answer
    x = 527,963.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.