Home / 832,130.10-1,148,337.05-450,156.78

Finding the Fourth Proportional to 832,130.10, 1,148,337.05 and 450,156.78

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Solution

The fourth proportional to 832,130.10, 1,148,337.05 and 450,156.78 is: 621,215.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    832,130.10 : 1,148,337.05 = 450,156.78 : x
  2. Step 2: Convert to fraction form
    832,130.10/1,148,337.05 = 450,156.78/x
  3. Step 3: Cross multiply
    832,130.10x = 1,148,337.05 × 450,156.78
  4. Step 4: Simplify right side
    832,130.10x = 516,931,706,531.92
  5. Step 5: Solve for x
    x = 516,931,706,531.92/832,130.10
  6. Step 6: Final answer
    x = 621,215.01

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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.