Home / 688,248.84-949,935.20-382,430.29

Finding the Fourth Proportional to 688,248.84, 949,935.20 and 382,430.29

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Solution

The fourth proportional to 688,248.84, 949,935.20 and 382,430.29 is: 527,838.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,248.84 : 949,935.20 = 382,430.29 : x
  2. Step 2: Convert to fraction form
    688,248.84/949,935.20 = 382,430.29/x
  3. Step 3: Cross multiply
    688,248.84x = 949,935.20 × 382,430.29
  4. Step 4: Simplify right side
    688,248.84x = 363,283,994,017.21
  5. Step 5: Solve for x
    x = 363,283,994,017.21/688,248.84
  6. Step 6: Final answer
    x = 527,838.15

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Double scale
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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.