Home / 623,579.10-935,368.65-434,622.30

Finding the Fourth Proportional to 623,579.10, 935,368.65 and 434,622.30

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Solution

The fourth proportional to 623,579.10, 935,368.65 and 434,622.30 is: 651,933.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,579.10 : 935,368.65 = 434,622.30 : x
  2. Step 2: Convert to fraction form
    623,579.10/935,368.65 = 434,622.30/x
  3. Step 3: Cross multiply
    623,579.10x = 935,368.65 × 434,622.30
  4. Step 4: Simplify right side
    623,579.10x = 406,532,074,010.90
  5. Step 5: Solve for x
    x = 406,532,074,010.90/623,579.10
  6. Step 6: Final answer
    x = 651,933.45

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Half scale
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Double scale
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Similar ratio
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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.