Home / 688,275.63-949,852.17-382,352.40

Finding the Fourth Proportional to 688,275.63, 949,852.17 and 382,352.40

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Solution

The fourth proportional to 688,275.63, 949,852.17 and 382,352.40 is: 527,663.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,275.63 : 949,852.17 = 382,352.40 : x
  2. Step 2: Convert to fraction form
    688,275.63/949,852.17 = 382,352.40/x
  3. Step 3: Cross multiply
    688,275.63x = 949,852.17 × 382,352.40
  4. Step 4: Simplify right side
    688,275.63x = 363,178,256,844.71
  5. Step 5: Solve for x
    x = 363,178,256,844.71/688,275.63
  6. Step 6: Final answer
    x = 527,663.98

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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.