Home / 877,455.91-1,210,897.16-514,885.80

Finding the Fourth Proportional to 877,455.91, 1,210,897.16 and 514,885.80

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Solution

The fourth proportional to 877,455.91, 1,210,897.16 and 514,885.80 is: 710,547.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,455.91 : 1,210,897.16 = 514,885.80 : x
  2. Step 2: Convert to fraction form
    877,455.91/1,210,897.16 = 514,885.80/x
  3. Step 3: Cross multiply
    877,455.91x = 1,210,897.16 × 514,885.80
  4. Step 4: Simplify right side
    877,455.91x = 623,473,752,944.33
  5. Step 5: Solve for x
    x = 623,473,752,944.33/877,455.91
  6. Step 6: Final answer
    x = 710,547.10

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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.