Home / 880,861.02-1,215,547.52-498,890.53

Finding the Fourth Proportional to 880,861.02, 1,215,547.52 and 498,890.53

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Solution

The fourth proportional to 880,861.02, 1,215,547.52 and 498,890.53 is: 688,445.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,861.02 : 1,215,547.52 = 498,890.53 : x
  2. Step 2: Convert to fraction form
    880,861.02/1,215,547.52 = 498,890.53/x
  3. Step 3: Cross multiply
    880,861.02x = 1,215,547.52 × 498,890.53
  4. Step 4: Simplify right side
    880,861.02x = 606,425,146,492.99
  5. Step 5: Solve for x
    x = 606,425,146,492.99/880,861.02
  6. Step 6: Final answer
    x = 688,445.89

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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.