Home / 525,983,143.80-788,974,715.70-219,495,214.20

Finding the Fourth Proportional to 525,983,143.80, 788,974,715.70 and 219,495,214.20

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Solution

The fourth proportional to 525,983,143.80, 788,974,715.70 and 219,495,214.20 is: 329,242,821.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,983,143.80 : 788,974,715.70 = 219,495,214.20 : x
  2. Step 2: Convert to fraction form
    525,983,143.80/788,974,715.70 = 219,495,214.20/x
  3. Step 3: Cross multiply
    525,983,143.80x = 788,974,715.70 × 219,495,214.20
  4. Step 4: Simplify right side
    525,983,143.80x = 173,176,174,220,955,616
  5. Step 5: Solve for x
    x = 173,176,174,220,955,616/525,983,143.80
  6. Step 6: Final answer
    x = 329,242,821.30

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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.