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Finding the Fourth Proportional to 607,139.20, 909,931.20 and 466,199.20

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Solution

The fourth proportional to 607,139.20, 909,931.20 and 466,199.20 is: 698,701.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,139.20 : 909,931.20 = 466,199.20 : x
  2. Step 2: Convert to fraction form
    607,139.20/909,931.20 = 466,199.20/x
  3. Step 3: Cross multiply
    607,139.20x = 909,931.20 × 466,199.20
  4. Step 4: Simplify right side
    607,139.20x = 424,209,197,495.04
  5. Step 5: Solve for x
    x = 424,209,197,495.04/607,139.20
  6. Step 6: Final answer
    x = 698,701.71

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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.