Home / 688,076.07-949,547.18-382,152.40

Finding the Fourth Proportional to 688,076.07, 949,547.18 and 382,152.40

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Solution

The fourth proportional to 688,076.07, 949,547.18 and 382,152.40 is: 527,371.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,076.07 : 949,547.18 = 382,152.40 : x
  2. Step 2: Convert to fraction form
    688,076.07/949,547.18 = 382,152.40/x
  3. Step 3: Cross multiply
    688,076.07x = 949,547.18 × 382,152.40
  4. Step 4: Simplify right side
    688,076.07x = 362,871,733,750.23
  5. Step 5: Solve for x
    x = 362,871,733,750.23/688,076.07
  6. Step 6: Final answer
    x = 527,371.54

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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.