Home / 289,526.16-434,182.50-99,938.28

Finding the Fourth Proportional to 289,526.16, 434,182.50 and 99,938.28

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Solution

The fourth proportional to 289,526.16, 434,182.50 and 99,938.28 is: 149,870.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,526.16 : 434,182.50 = 99,938.28 : x
  2. Step 2: Convert to fraction form
    289,526.16/434,182.50 = 99,938.28/x
  3. Step 3: Cross multiply
    289,526.16x = 434,182.50 × 99,938.28
  4. Step 4: Simplify right side
    289,526.16x = 43,391,452,256.10
  5. Step 5: Solve for x
    x = 43,391,452,256.10/289,526.16
  6. Step 6: Final answer
    x = 149,870.58

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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.